[[quoteright:360:http://static.tvtropes.org/pmwiki/pub/images/Two_and_a_Half_Men_6675.jpg]]

->''"Jake, it takes more than sex to make a man happy... You also need money."''
-->--'''Charlie Harper'''

Ladies' man Charlie Harper (Creator/CharlieSheen) is living the good life as a successful jingle writer in a seaside mansion in Los Angeles. That is, until his nerdy brother Alan (Jon Cryer), who was thrown out by his ex-wife, moves in, bringing his ten-year-old son Jake (Angus T. Jones). Now, not only does he have to cope with Rose, the stalker who lives next door, Evelyn, his conniving and guilt-tripping mother, and Berta, his sarcastic housekeeper, but also Alan's various neuroses and Jake's complete lack of any sort of tact or personal hygiene. Sadly, however, Charlie's womanizing nature eventually catches up with him in 2011 when he [[McLeaned catches a train the hard way]]. Enter suicidal billionaire Walden Schmidt (Ashton Kutcher) as the new owner of Charlie's home. After quickly becoming friends with Alan he continues to let him and Jake live with him while they get over the loss of Charlie.

The show first began airing on Creator/{{CBS}} in 2003 and is currently in its eleventh season. Season eight was cut short after lead actor Creator/CharlieSheen was fired due to his self-destructive breakdown in 2011, one effect of which was a public feud with series creator Chuck Lorre. The show has continued with Ashton Kutcher as Walden, the show's new lead. An eleventh season has been announced; Angus T. Jones (who plays Jake) had his part changed to a recurring role due to college commitments.
!! ''Two and a Half Men'' provides examples of:
* AbortedArc:
** With Charlie Sheen gone, the story of the decidedly odd love triangle of Charlie, crazy Rose, and "Manny Quinn" will never be resolved. Well, the Charlie/Rose/Manny issue has been somewhat resolved due to [[BusCrash Charlie being dead]].
** Whether Judith's new baby is Alan's or Herb's was never really resolved since her baby is not even mentioned anymore.
*** Now that Judith's actress has left the show, it's a moot point.
** Judith actually was supposed to turn out to be a lesbian originally... until someone pointed out that ''{{Friends}}'' had already used the "woman turns out to be a lesbian and throws out her husband" plot in its own pilot episode nearly a decade earlier (Ross' first ex). As a result, the remaining first season episodes instead had her just pretending to be gay so that Alan wouldn't contest the divorce.
* AbusiveParents:
** Evelyn eats the souls of children, as Alan points out.
** Judith herself isn't the best mom, or human being, ever. Considering how both Charlie and Alan seem to suffer from MommyIssues and possibly Oedipus Complex, one can easily deduce Judith is not much better than Evelyn. Seeing strange men in front of her underage son? Check. Verbally abusing him and his father? Check. GoldDigger and {{Hypocrite}}? Check, Check, Check.
** Alan has shades of this in later seasons, mostly due to how dismissive and neglectful he is to Jake, as well as how often he insults Jake to his face. It's no wonder that Jake's turned out how he has.
*** To be fair he tried to be a decent parent in the earlier seasons (when Jake was younger) but between Charlie's hedonistic lifestyle, Judith's emotional and financial abuse, Jake himself growing into more of an irresponsible moron, you can see that Alan may be just jaded and doesn't really care too much anymore (sometimes {{truth in television}}, sadly).
* AdamWesting: Charlie Harper is clearly based on Charlie Sheen, the actor who plays him. Though it seems this is the opposite of how it normally goes because Harper is the less exaggerated one.
** Missi, as played by MileyCyrus seems to be an exaggerated version of the actress complete with a hillbilly accent.
* AesopAmnesia: Charlie seems to go through this every time he gets involved with an older woman. He ascertains that's he's fine dating one older woman and then goes through the whole thing all over again with another older woman.
* TheAlcoholic: Charlie was definitely this. At first he wasn't too bad and just drank a lot and was drunk every now and then. In later seasons, he always had a drink in hand or poured himself one when he was at home and was often well on his way to being drunk or already drunk.
* TheAllegedCar: Alan's less-than-10-year-old Volvo is inexplicably this (despite being a 2001 model, they also insist on calling it a ''1989'').
* AllJustADream: The HumiliationConga that spans most of the episode [[spoiler: "Frodo's Headshots"]], from learning Jake's tutor is pregnant to seeing Walden making out with his girlfirend to being booted out of the house to being shot to death just as he was about to go out with someone.
* AnimalAthleteLoophole: There is an off-hand joke about a movie involving a dog playing hockey in one episode.
* ArmouredClosetGay: Chelsea's father.
* ArtifactTitle: The "half" in question became fully grown up, making it "Three Men", and has now been written off the show entirely, dropping it to two.
* ArtisticLicenseLaw: In "No Sniffing, No Wowing", Alan's lawyer commits outright malpractice with no consequences. After Charlie sleeps with her paralegal, she gives Judith and her attorney everything they demand without Alan's consent. First, she can't enter anything into the agreement without Alan's signature, which he wouldn't do, and second, even if she did somehow enter it, she's not acting in Alan's best interests and is liable for damages. In RealLife, the agreement would be illegal, Alan would have gotten a lawyer that would stand up for his rights, and she would have been reported to the Bar Association of California and sued the difference of what she and Alan agreed he would pay and what he would have paid. This is to say nothing of the fact she got Alan to get Charlie to perjure himself and say under oath that Alan bought a set of books before he met Judith (he didn't) - though admittedly, this says more about Charlie than it does her. She does, however, mention that her sleeping with Charlie was a breech of ethics and Alan could sue (though he never does).
* ArtisticLicenseCars: Alan's Volvo is a 2001 V70, yet everyone calls it a 1989 model (possibly even implying it's a 240).
* ArtifactTitle: Jake eventually gets old/tall enough that it might have gotten by being called ''Three Men.''
** By Season 11, Jake is gone altogether, and a lesbian moves in, giving whole new meaning to the title.
* AscendedMeme: When Alan believes he's Charlie, he states "Winning!" A reference to Charlie Sheen's MemeticMutation, "bi-winning."
* AshesToCrashes: Charlie's ashes end up on the living room when Alan is startled by Walden.
* TheBrainlessBeauty: Kandi
-->'''Alan:''' I need to communicate after lovemaking. I need to share.
-->'''Charlie:''' Well, maybe you should have thought of that before you started boinkin' a girl with the IQ of Tickle Me Elmo!
* BatmanGambit: In "Kinda Like Necrophilia", Charlie manipulates Alan to get him to steal his girlfriend and dump her for him, while making Alan think he was hurting Charlie for it.
* BigScrewedUpFamily: An understatement.
* BiggerIsBetterInBed: According to Alan, Walden is hung like an elephant. Berta and Judith are impressed when they see him naked.
* BilingualBonus: The Chinese-character tatoos on [[{{Goth}} Isabella's]] right arm mean "true love."
* BitchInSheepsClothing: Alan started to show signs of this in the middle and later seasons; then, starting in Charlie's last season, and especially since he's been gone, has become an overt JerkAss in his own right.
* BlackComedy:
** The episode "A Sympathetic Crotch To Cry On". Dear. God.
-->'''Evelyn''': ''(To dead husband at his'' funeral.'')'' I've got a great ass and yours is decomposing!
** Charlie's funeral.
---> "Yeah, Yeah, Why can't we see the body?"
---> "Yeah, I didn't come all this way to spit on a closed coffin"
---> "I'm afraid due to the nature of his passing, the remains aren't exactly...spittable"
* BrainBleach: Invoked in an episode, where the brothers discover that one of Charlie's former girlfriends has undergone a sex change and is now dating their ''mother''. Charlie's suggestion to dealing with this? "Drink until the part of the brain that creates mental pictures dies!"
* BreakingTheFourthWall: Although in this case literally, as Walden's ex-wife drives her car through the wall we usually never see because it's the side from which the audience watches the show. (In the episode "What a Lovely Landing Strip.")
** Alan in the episode "Grandma's Pie", when he asked the audience if they could vote on whose dinner went worse.
* BrickJoke:
** In one episode, Evelyn asks Alan "More embarrassing when you were eleven and I caught you with the dog and the peanut butter?" In a later episode, Charlie tells a group of friends that he walked in on Alan and said "''Alan!'' The dog is supposed to lick the peanut butter off ''you!''" In "A Giant Cat Holding a Churro", when Alan tells Lindsey all his embarrassing secrets, he starts with this.
** In one episode where Charlie dates a foreign girl he can't understand she says her family will be coming over and he of course can't understand her and just agrees. [[spoiler: After an entirely unrelated episode at the end she comes over with most of her entire family to Charlie's surprise.]]
* BringMeMyBrownPants:
** After Walden apologises for nearly killing them with his reckless driving, Alan apologises for peeing on his car seat.
** And this clip, where [[http://www.youtube.com/watch?v=OwJHSkFpn-o a father-son bonding moment gets a little messy]].
** And again, when Walden offers Alan a "small" stipend to serve on the board of his corporation. Alan's response is to make a bubble in the bath, and not with his mouth. If it had been higher, "we would have had to drain the tub".
* BrokenAesop: Season 4, Episode 22. Jake wins $1100 at the track and Alan gets all pissy and is a JerkAss because Jake has money and he doesn't. Jake gets ripped off by some guy at the gas station who sold him a broken motorcycle. Alan then lectures Jake about when you have money, you put it in the bank so you always have it. In other words, squirrel it away and never take risks in your life.
* BungledSuicide: When his wife left him, Walden tried to drown himself in the ocean. [[WhatAnIdiot Apparently he didn't realize that the water would be really cold]].
** Charlie tries this too in an earlier episode, with the same result.
** Due to his HumiliationConga in "Frodo's Headshots", Alan attempted to kill himself with an overdose of carbon monoxide poisoning, but the misfortunes for him only continued when the car blew out.
* ButWeUsedACondom: Charlie had a pregnancy scare in one episode. In another, he began to believe that he was the father of his ex-girlfriend's son and she went along with it. He eventually agreed to keep his distance but supplied the ex-girlfriend with a fat monthly check. As it turns out [[spoiler: she was actually the kid's nanny and she conned Charlie. At the end of the episode she quits her job, telling the real mother that she just came into a new source of income]].
* ButtMonkey: Alan, in the extreme. His poor luck is a running joke present in nearly every episode, brought along by either Alan's poor judgment and lack of worldliness, or one of his relatives (almost always Charlie). This is most likely because every single person Alan seems to meet is a {{Jerkass}} or golddigger, he gets woman scorned constantly (although Charlie actually DIED from this), Taken UpToEleven in "Frodo's Headshots", where Alan finds out that Jake got his girlfriend pregnant, learned that Walden and Lyndsey had started dating while he was in the mental health clinic (and was told to move out as a result of this), received an IRS audit, failed at a suicide attempt when his car blew out, was molested by a male truck driver, abandoned by his mother out in the rain, had his stuff moved into a storage facility, and shot to death by Herb when it was found out that Alan was the father of Jake's baby sister, Milly. Although it was revealed after this last event that the entire setup was AllJustADream.
* TheCameo: John Stamos and Series/DharmaAndGreg showed up looking to buy Charlie's house.
* CampStraight: Alan
* CarMeetsHouse: In "What a Lovely Landing Strip", Bridget deliberately crashes her car into Walden's house after he dumps her.
* TheCassandra: Alan repeatedly warns Walden about Rose. Eventually he's proven right.
* CatchPhrase:
** Charlie's "Are you out of your freakin' mind?" usually said to Alan. Alan sometimes borrows this to say to Charlie.
** Alan's "nevertheless" and "be that as it may".
** Bretta's "I'm not cleaning that up." and "Gadzooks."
** Jake's "...Oh yeah!" Whenever he's been reminded.
** Evelyn's "How could you do this to me?!" in some variation.
* TheCasanova: Charlie
** And his daughter Jenny
* CelebrityParadox: In "Is There A Mrs Waffles?" Charlie watches Series/DharmaAndGreg (an inside joke as that was another Chuck Lorre production). Then they turn up to buy Charlie's house after he's killed.
** Shortly before Evelyn's wedding, Charlie mentions ''Film/ApocalypseNow'' by name, and references it at another point. Charlie Sheen's father, Martin Sheen, stars in ''Film/ApocalypseNow'', and has at least two appearances on the show. Charlie Sheen even appeared as an extra in the movie.
*** [[FridgeBrilliance Unless Al Pacino played Captain Willard]] in the ''Two and a Half Men''-verse, [[WhatCouldHaveBeen as originally planned]].
** Alan, in one episode, manages to get Charlie medical treatment by claiming to be Matthew Broderick. When the doctor finally gets around to treating Charlie, he asks Alan why there's no sequel to Film/FerrisBuellersDayOff, a film which featured Charlie Sheen in a cameo role as (fittingly) a drug addict.
** In "West Side Story", Larry and Lyndsey, and Alan and Gretchen, are playing a Pictionary-type game where Larry thinks the object Lyndsey is drawing is a duck (it's actually a witch hat). He guesses various duck-related topics, including "Duckie, from ''PrettyInPink''!" Of course, Duckie was played by Jon Cryer (Alan), who gives Larry a strange look at this point.
** Creator/MilaKunis is mentioned in "How to Get Rid of Alan Harper", and guests stars in "Lan Mao Shi Zai Wuding Shang", not playing herself.
* ChuckCunninghamSyndrome: Jake's new baby sister, especially considering on how the show played up on whether if Judith's new baby is Jake's half-sister or his sister. [[note]]Judith and Herb had a fight and separated in which a depressed Judith seems to be nicer to Alan and they are in a sexual relationship in which Judith seems to want to get back together with Alan. However shortly before Judith and Herb reunited, Judith began hating Alan again and told him to go away. Shortly after Herb and Judith have reunited Judith is pregnant, before and after the baby was born Alan believes that he is the father of the child while Judith strongly denies it due to her hatred of him.[[/note]] However shortly after the baby was born, the child was never mentioned again and only Jake was accounted for when it came to Judith's children [[note]]Though it was briefly brought up in "A Giant Cat Holding a Churro", where Alan tells all of his embarrassing secrets to Lindsey, and again in "Frodo's Headshots", thanks to a dream whipped up by Alan's guilty subconscious[[/note]].
* CloudCuckoolander: Rose
* ComedicSociopathy:
** Charlie to disturbing levels.
** Also Alan, via his ventriloquist's dummy, "Danny O'Day".
--> '''Alan:''' Boy, [Charlie] can be such a pig sometimes.
--> '''Danny:''' ...and you know what happens to pigs, don't you? They get ''slaught--''
--> '''Alan:''' Danny! Don't say that. Don't even think it!
--> ''*{{Beat}}*''
--> '''Danny:''' --ered.
** And Rose, who has yet to be prosecuted for Charlie's murder despite in effect confessing it to the assembled crowd at his funeral.
* CompanionCube: For Alan, Danny the dummy, for a short string of episodes.
* CousinOliver: The upcoming season will have Charlie's long-lost daughter to replace Jake.
* CovertPervert: Alan's pregnancy fetish when Berta's daughter Naomi shows up.
* CrapsackWorld: For Alan, it's pretty crappy. He lives with a brother who sits back and enjoys watching him screw himself over and over and gets more than he does. Not to mention having an ex-wife who spends alimony payments for inherently selfish purposes, as well as the fact that all of his love affairs he has have a FailureIsTheOnlyOption promise, and virtually every single person he meets is a JerkAss or a GoldDigger. Alan has it pretty bad.
* {{Crossover}}: With the ''Series/{{CSI}}'' franchise, on the episodes "Fish in a Drawer" and "Two and a Half Deaths," where each show's writing team wrote the other show's episode.
* CulturalTranslation: Parodied when Charlie has to write a theme tune for an {{Anime}} dub. HilarityEnsues.
* DeadpanSnarker: Pretty much everyone fits this role at one time or another, but Berta and Dr. Linda Freeman (Charlie's shrink) most frequently.
* DemotedToExtra: Jake, starting Season 10. According to some critics, the best episodes of this season were Jake-centric. By season 11, Jones has officially left the show entirely. The roles of Rose, Evelyn and Judith have also been greatly reduced in the later seasons.
* DepravedKidsShowHost: Charlie, when he becomes a Children's Song Star.
* DistinguishedGentlemansPipe: Alan, while staying at Lindsey's home, finds her ex-husband's pipe and starts using it to look more distinguished. Unfortunately, he leaves it too close to the drapes and burns the house down.
* TheDitz: Jake, Kandi, and Eldridge.
* DoItYourselfThemeTune: Though in appearance only.
* TheDoorSlamsYou. Happens to Alan courtesy of his dimwit son and his dopehead friend while investigating a noise in the middle of the night. Part of a long HumiliationConga that leaves him a twitching, broken, possibly rabies-infected nervous wreck.
* DotingGrandparent: Hilariously averted with Evelyn to Jake.
* DoubleStandard: Egregiously done towards ''both'' sexes, including the RunningGag that is Rose. Think about it for a second: [[GenderFlip if she'd been a guy and Charlie a woman]]....
* DroppedABridgeOnHim: Charlie; see McLeaned.
* DrowningMySorrows: Walden tries it, but he can't stand the taste of whiskey.
* DumbBlonde: Eldridge, and several of the one-time woman characters on the show also fall into this stereotype.
* EarlyInstallmentWeirdness: Charlie's wearing pants and sleeping on the left side of the bed.
* EntendreFailure: In "Avoid the Chinese Mustard":
-->'''Missi:''' So, Jake, do you wanna go to your bedroom and unpack?
-->'''Jake''' Uh, that's okay, I don't really have much.
-->'''Missi:''' Well then, maybe you could help me "unpack".
-->'''Jake''' Why?
* EnterStageWindow
* EvenTheGuysWantHim: Charlie
* EverybodyHasLotsOfSex:
** [[ButtMonkey Except Alan]].
** Continued briefly with Walden's addition.
-->''Seeing Walden go upstairs with both girls after coming home''
--> '''Alan:''' This seems depressingly familiar.
* EveryoneHasStandards: Charlie found there were lines he wouldn't cross.
** Berta immediately ripped Charlie a new one when it looked like he was trying to sleep with Judith when she was briefly staying at the house due to her house being damaged.
* EverybodyMustGetStoned: Happens on a few notable occasions but now more frequently in recent seasons. In one episode, Walden, Evelyn, Jenny, Berta, and Marty Pepper (played by Carl Reiner) all get high after the "buzz-kill" Alan leaves.
* EvilMatriarch: Evelyn. Also, Judith towards Jake.
* {{Expy}}: Jenny basically is Charlie in the body of a 25-year-old female.
* ExtremeDoormat: Alan
* FailureIsTheOnlyOption: Alan moving out of Charlie's house before Charlie died, as well as Charlie and Alan's love life, whether Jake would change, etc.
* FamilyThemeNaming: Kandi, Andi and Mandi
* FanService:
** How many gratuitously naked sexy women can fit into one show?
** And then for the ladies, Ashton Kutcher's first episode featured him walking around in his birthday suit.
* {{Fetish}}: Alan has a bit of a thing for [[http://www.youtube.com/watch?v=FiNOcWY9KRI pregnant women.]]
* FirstGirlWins:
** (Sort of) In the pilot episode, the actress who plays Chelsea appears in the supermarket and hits on Charlie while he's shopping with Jake.
** In recent episodes, Charlie hooks up with Rose because she tricked him into thinking she got married, making her more attractive to him. She has been around since the very beginning as his stalker and has finally gotten her due (such as it is).
* {{Flanderization}}: In the later seasons, Alan became a sponge who mooches off of Charlie and later Walden without remorse, Charlie became a even bigger JerkAss and Jake became even dumber.
* FlirtyStepsiblings: Charlie and Evelyn's fiance's daughter, played by Jenny [=McCarthy=]. It was later revealed that she wasn't actually the guy's daughter too (they were both con artists) so there was a '''''ton''''' of NotBloodSiblings going on.
* FollowTheLeader: Starting with Season 10, the show started to incorporate quite a bit of the geeky humor that made ''Series/TheBigBangTheory'' so popular. Justified in that the jokes are more fitting to Walden's character and background than the Charlie-esque storylines the show was still trying to use in Season 9... and the fact that Chuck Lorre produces both shows.
* FourTemperamentEnsemble:
** The main male characters: Charlie (choleric), Alan (melancholic), Jake (phlegmatic), and Walden (sanguine).
** The main female characters: Judith and Berta (choleric), Evelyn (melancholic), Chelsea (phlegmatic), Rose and Kandi (sanguine), and Jenny (leukine).
** Other characters: Herb (phlegmatic), Mia (melancholic), Dr. Freeman (leukine), and Lyndsey (choleric).
* FreudianTrio: Jake is the Id, Charlie is the Ego, and Alan is the Superego
* FromTheMouthsOfBabes: Jake
* TheFundamentalist: Miss Pasternak.
* TheFunInFuneral:
** In "A Sympathetic Crotch To Cry On", the family attends the funeral of one of Evelyn's exes; a lot of jokes are on the dead guy in the coffin.
** Charlie's funeral in "Nice to Meet You Walden Schmidt" is similar.
* GagBoobs: Take a look [[http://www.youtube.com/watch?v=G-P-pQ_yRmA&feature=related here]]
* [[GassHole Gasinass Syndrome]]:
** Jake. Alan squeaks a few off now and again as well. He once admits red wine causes him to fart.
** Berta's daughter had this problem while pregnant, much to Alan's dismay:
--> "Wow, that one's got some hang time!"
** Who could forget a less-than-affectionate Lyndsey telling Alan to back off [[http://www.youtube.com/watch?v=gM7IZMscSkE in no uncertain terms]]? One appearance has her getting back together with Alan, one of the reasons being she can fart "like a buffalo" and he still won't leave her. She then proceeds to do so.
* GeniusDitz: Walden is great with computers but has trouble picking matching shoes. This aspect of his character has faded later on.
** Jake is a socially inept moron on so many levels, but he is a fantastic cook.
* GettingCrapPastTheRadar: This show is practically based on this trope.
* GirlOfTheWeek: Charlie's specialty. One has to wonder how Charlie Harper is the less-exaggerated version of Charlie Sheen.
* {{Gonk}}: Jake in the later seasons.
* AGoodNameForARockBand: Invoked on season 7 premiere "818-jklpuzo" with "Psychosomatic Constipation."
* GoToYourRoom: It's more "Go do your homework.", but Alan does this to Jake whenever he wants to avoid an awkward conversation at dinner.
** In one episode, Alan actually says "Go to your room" to Jake upon returning home. This was for Jake imitating the growl of a wild animal, causing Charlie & Alan to flee and jump into a body of water. Earlier, the three of them got lost searching for a ranch and went from driving to walking.
* GrandeDame: Evelyn has faint shades of this.
* GrandmaWhatMassiveHotnessYouHave: Walden's mother Robin, the grandmother of Walden's BrainlessBeauty date, and Lynda Carter.
* GroinAttack:
** "I just got kneed in the nuts!" - Charlie Harper
** Jake mentions getting "a soccer ball to the nads" at least twice.
* HandsomeLech: Rose is a rare female example. Despite being rather attractive, she ''is'' a stalker, would regularly climb over Charlie's balcony instead of visiting by using the front door and has engaged in elaborate schemes to make him fall for her, including keeping him sick so she can play Florence Nightingale and, more recently, put on a fake wedding just to make Charlie want her.
* [[HasTwoMommies Has Two Daddies]]
* [[SheCleansUpNicely He Cleans Up Nicely:]] [[http://www.youtube.com/watch?v=LVmuwOideU0&feature=related Alan.]]
* HenpeckedHusband: Herb and Alan are both abused by Judith. Alan is equally henpecked by his second wife, Kandi.
* HeroicBSOD: Charlie's response to Chelsea leaving him in Season 7. Luckily for him, Alan was there.
* HilariouslyAbusiveChildhood: Charlie and Alan's childhood was like this.
* HollywoodDateless: Although gnomish, nebbishy, and for all practical purposes homeless, Alan does fairly well in the tail department. Most of the failures in his relationships come about as a result of either his crippling insecurity and neediness or the fact that he gravitates towards emotionally-damaged women. This included his first ex Judith, his second ex Kandi, his former receptionist Melissa--and her mother--Rose, and a pill-popping suicidal woman played by Creator/JaneaneGarofalo and Rose herself (not Melissa's mother but Charlie's Rose, the Rose that is mad and played by Creator/MelanieLynsky).
* HollywoodToneDeaf: Averted in "818-jklpuzo;" the singer comes off as realistically unable to sing.
* HomoeroticSubtext: Between Alan and Herb.
* HumiliationConga: [[http://www.youtube.com/watch?v=-ap8hmr9cQQ&feature=related Alan, as ever.]]
** Charlie goes through one in the episode "Release the Dogs" where after he breaks his promise to Jake not to date his friend's mom, gets [[CoveredInGunge splattered with slime]], falls off the balcony and gets a face and mouth full of sand while chasing Jake, and gets chased by police dogs across the beach.
* {{Hypocrite}}: Judith. For one thing, she chews out Alan and Charlie for the women they bring to Charlie's house while Jake is around, whom she deems as inappropriate, while she has been known to bring strange men to her house while Jake is around just the same.
** She left Herb for having an affair when she's had several while they were married with people Herb considers his friends.
* ICanChangeMyBeloved: When Charlie's mother meets his first serious LoveInterest, they square off like a confrontation is about to take place. Instead, the mother simply asks desperately, "Can you fix him?" Exasperated, the girl confirmed, "I'm trying." She is, but it doesn't work.
** Ms Pasternak wants to do this to Charlie in both of her appearances.
* IdiosyncraticEpisodeNaming: Episodes are named for throwaway lines of dialogue in the episode, thus leading to a TitleDrop as well.
* IdiotBall: Charlie automatically assumes that a child with dark hair and eyes (a common feature) who wears similar clothes to him and supposedly has the same name is his child. Most guys would order paternity tests, and given the kind of guy Charlie is, one would think it would be standard procedure for him.
* IfIHadANickel: "An Old Flame with a New Wick" has, "If I had a nickel for every time a girl broke up with me and came back as a man, I'd have a ''nickel''!"
* TheImmodestOrgasm. When trapped in the beachhouse by a storm, both Zoey and Lindsay fake very loud sex noises, each to try to one-up the other. Zoey's are [[CrowningMomentOfFunny operatic, no less]]. Also, Lindsay can be quite vocal when she's [[HurricaneofPuns having a ball]].
* InTheBlood: Season 11 introduces Charlie's lesbian daughter, Jenny, who is just as much of a drinker and womanizer as he was.
* IndulgentFantasySegue: In one episode Charlie imagines tearing Alan's arm off and beating him with it.
* InformedAbility: For a BigEater, Jake [[TheyWastedAPerfectlyGoodSandwich never seems to finish a meal]] on the show, often going off to do his homework with his plate still mostly full.
* InformedFlaw: In Rose's earliest appearances, the major characters reacted to her as if she was ugly; this was phased out and replaced by sheer creepiness relatively quickly, though. Rose's actress is, by most standards, very pretty.
* InherentlyFunnyWords: [[CrowningMomentOfFunny SQUAB!]]
* InSeriesNickname: Berta calls Alan "Zippy", and Alan calls Jake "buddy".
* InsomniaEpisode: There is an episode where Alan has trouble sleeping and visits a psychologist to hilarious effect.
* InstantSeduction: Charlie, natch.
* InventorOfTheMundane: Walden Schmidt is a billionaire after developing [[http://www.fictionurl.com/blungogo-com/ BlunGoGo.com]], a website that he sold to Microsoft for $1.3 billion. No one has ever heard of it because Microsoft decided to bundle it with the Zune.
* ItsAllAboutMe: This arguably applies to everyone, but especially Evelyn, the two brothers' mother. She frequently reacts to news that affects anyone except her with "Do you have any idea what you put me through?!"
** Judith is a master at this.
* IWasYoungAndINeededTheMoney: Lindsey says this almost verbatim in "A Giant Cat Holding a Churro", when Alan finds out that she once appeared in a softcore porn film.
* {{Jerkass}}: Everyone is a [[JerkAss jerkass]] in this show; Alan initially [[OnlySaneMan was the exception]], [[TookALevelInJerkass but has joined their ranks]] in later seasons.
* JerkassHasAPoint: In The Leather Gear is in the Guest Room (S05,E07), Alan bought a bowl that Charlie didn't like and keeps arguing with Charlie about it. Charlie makes a good point in that he took Alan and Jake in and pays for nearly everything that they need, the only real thing he asks of Alan is to not try and fill his house with stuff he doesn't want there, which he has the right to say, since it's his house.
** In S03,E15, Mia's spent the entire episode forcing Charlie to change into someone he's not. Charlie points out that he's unhappy having to be someone he isn't, especially since Mia herself isn't attempting to change at all and that he shouldn't have to do that.
** Judith makes a good point in {{S07E03}}, just because Jake has a learners permit doesn't mean he's ready to drive. It turns out to be unfound though, since he's surprisingly a good driver.
* JerkWithAHeartOfGold: Charlie was this sort of character in the early seasons, before becoming a bigger [[JerkAss]] as the show progressed. When Alan and Jake appear to be moving out, Charlie very nearly tells Alan he can stay before Alan's bluff about finding a good place to live falls through. Charlie however, does not rub it in his face; it's almost a nice moment. The time he helps Jake prepare for his first boy-girl party also qualifies.
** Berta. She may be snarky and rule the house through fear, but she often gave Charlie good advice and showed that she cared about him and Alan in her own way.
* KarmaHoudini:
** Evelyn is a narcissist that abused Charlie and Alan growing up and still abuses them to this day and has caused the death of two of her ex-husbands (One by food poisoning, the other committed suicide) and caused the death of a cockatoo that she owned. She's never gotten any comeuppance for any of this.
** Judith abuses everybody in her life and despite all of the hell she inflicts on people.... The nearest to any form of retribution is the occasional vicious one liner from Charlie and Alan flustering her ego.
** Charlie [[strike:a lot]] [[strike: most]] all of the time too (Well, until he went to Paris, that is).
*** This was actually addressed in the episode "Release the Dogs" where Alan goes through a lot of stress and angst over how Charlie seemed to have everything easy and coast by in life, never receiving punishment for his terribleness. By the end of the episode, it's hilariously subverted when after Charlie promised Jake the he wouldn't date Jake's crush's mother yet did so anyway, Jake [[spoiler:with some help from Rose]] pours a bucket of slime over Charlie's head, has him jump over the balcony and crash into the beach, and then get chased after by police hounds.
**** Charlie at the very least has the odd moment as TheChewToy and is implied to have several psychological dents from his perverted lifestyle.
** When Alan runs a Ponzi scheme on his family and friends, he manages to get enough money [[spoiler:from Rose]] to pay everyone back before they find out what he did.
** It's heavily implied that Rose murdered Charlie, and made it look like an accident. Alan and Berta both realize this, and Alan casually tells it to several people, but nobody does anything about it. In fact, fast forward a year & not only is Rose still walking free, but [[spoiler:it turns out she's started stalking Walden too. She doesn't even have any reason to, she just does it for no reason. It's implied that she's even stalked Jake]].
*** Rose is actually a walking KarmaHoudini, given that she stalks Charlie endlessly since their one night stand, despite Charlie having a restraining order against her. She's superglued his testicles, breaks into his house constantly and various other actions and this is all PlayedForLaughs.
** Alan's lawyer in "No sniffing, no whining". Despite commiting malpractice repeatedly when drawing up Alan and Judith's divorce settlement, she isn't even reported to the Bar Association (in RealLife, Alan could sue and report her to the Bar). See ArtisticLicenseLaw above.
* KarmicDeath: Charlie went to Paris, and married Rose, then cheated on her. Let's just say he scorned the wrong woman and she pushed him into a train.
* TheLadette: Season 11 introduces Charlie's daughter, Jenny, who is basically a female version of her father: she loves drinking, partying and women.
* LampshadeHanging:
** In "Fish in a Drawer", Charlie gets to hang a lampshade on how the attire worn by the female characters in the ''CSI'' franchise [[FanService isn't exactly crime scene appropriate]].
** Early in Season 9, after Walden has settled in as the replacement for Charlie, Alan points out how bizarre their living arrangements are when you stop & think about it, for no other reason than to let Walden (Read: the viewer) know that he (Read: the writing staff) is fully aware of how weird it is.
* LastDisrespects: Charlie has a dream in which he attends his own funeral (as a ghost). At the funeral, women spit on his coffin, the eulogy is filled with derogatory jokes, and Alan ends the service by inviting the congregation back to his beach house for a wake/luau.
** Charlie's actual funeral was only a step below this. Alan's eulogy was interrupted by Charlie's ex-girlfriends insulting the deceased, and Evelyn butted in bluntly...to remind everyone that Charlie's house is up for sale.
* LazyBum: Jake, at least until he joined the Army.
* LeaningOnTheFourthWall: Berta in the Christmas episode. Just before the ad break she quips "I can't wait for Act 2".
** Walden and Lyndsey saying that people don't get their own TV shows because they're good looking. There is then a brief pause where they let the joke sink in...
* LongRunner: 10 seasons and counting.
* ManlyGay: Chelsea's father and his partner, played by Stacy Keach (Mike Hammer) and John Amos, respectively.
* MarsAndVenusGenderContrast: Driving force in plot, characterization and dialogue.
* MDEnvy: Alan is a chiropractor who gets made fun of constantly for his work.
* MistakenForGay: Charlie and Alan on several occasions. Neither of them ever seem to want to point out that they're brothers.
** A running joke in Seasons 9 and 10 is the notion by many that Walden and Alan are gay since they are two grown men that live together. Mostly on Alan's part, since his looks pretty much confirm this to them.
* MoralDissonance: Charlie can be pretty abusive to Alan to the point of being like a sadistic abuser in a relationship and yet all the other characters act as if Alan has done something to deserve it. No one ever seems to bring up that Charlie could've gotten rid of Alan if he didn't sleep with his divorce lawyer and made him pay Judith ridiculous amounts of alimony for petty vengeance.
* MotorMouth: Missi (MileyCyrus) in the episode "You Know What The Lollipop Is For".
* MrFanservice: Walden. Every female character who met him (except for Danny, a lesbian) expressed attraction towards him in some way.
* MsFanservice: Kandi, including a few subtropes, most memorably CatholicSchoolgirlsRule.
--> '''Charlie''': Here's a fun thought: she's probably slept with more women than you.
--> ''*{{Beat}}*''
--> '''Alan:''' [[GirlOnGirlIsHot That is a fun thought!]]
* MrsRobinson: Evelyn.
* MusicalEpisode: The song "You're a Douche" at the end of "Grab a Feather and Get In Line."
* NeverSpeakIllOfTheDead: Subverted during Charlie's funeral; Alan tries to say nice things about him in his eulogy, but Charlie's ex-girlfriends interrupt him with insults. Later subverted by Alan himself:
-->'''Judith:''' And I thought your brother was a horrible influence. ''(on Jake)''
-->'''Alan:''' Don't speak ill of the dead! But you're right, he was a terrible human being.
* NiceGuy: Herb
** Chelsea before Season 9. She treated Alan the nicest out of everyone in the show.
* [[NoNameGiven No Last Name Given]]: Every main cast member whose last name isn't "Harper" (or "Schmidt") does not have a surname revealed. We still don't know the surnames of Rose, Berta, Kandi or Chelsea. We also don't know Judith's maiden name.
* NoNudityTaboo: Walden
* NoPreggerSex: Inverted; Alan says that the most sex he had with Judith was during the time she was pregnant with Jake. This led to him having a pregnancy fetish.
* NoSenseOfPersonalSpace: Walden thinks nothing of hugging Alan while in the nude.
* NoodleIncident: The "Den Mother Fiasco" continually mentioned when Charlie started going out with Jake's teacher.
** Most of the situations that Charlie convinced Alan to do as a child, like the dog and the peanut butter. That or situations that Alan got himself into, like a Japanese Penis Enlarger.
** Berta mentions the one time that the Department of Corrections wrote her name in her underwear.
* NotBloodSiblings
* NotStayingForBreakfast: Charlie.
* NotWhatItLooksLike: Walden gives Alan a big hug after being helped by him.....while nude. Cue Jake and Judith walking in the front door and HilarityEnsues.
* OddCouple: Charlie and Alan. Walden and Alan later on.
* OddFriendship: For all her [[{{Understatement}} quirks]], Rose was always nice with Jake, and both enjoyed each other's companies.
* OhCrap: [[spoiler:Walden telling Alan & Berta that he's met a woman at a bar elicits this reaction, after he mentions she was called Rose & that she knew Alan.]]
** Actually any episode where Rose is introduced by a third party, such as Chelsea or Zoey, to Charlie & Alan (or just Alan in "the Ashton era") qualifies. Such episodes w/ this instance took place when Melanie Lynskey was no longer a regular cast member & a certain period of absence had to suffice to enhance Charlie's & Alan's shock upon seeing Rose again. It's implied Rose had to get to Chelsea or Zoey before meeting Charlie or Alan as the women she introduced herself to were less familiar w/ her than the Harpers. Charlie in fact quipped that when he saw Rose, he made the neat description of likening his anus to trimming a cigar.
* OncePerEpisode: An attractive woman shows up for one or two episodes. If Charlie isn't sleeping with her, Alan will be. This was dropped when Charlie was dropped. Instead, Walden has a different long term love interest per season and Alan just has a on and off relationship with Lindsay.
** Starting Season 11, a joke about Alan's cheapness or inability to move out.
* OneHourWorkWeek: Walden is the head of a billion dollar company, yet he seems to have tons of free time to hang out with Alan and is hardly ever shown working.
* OneOfTheKids:
** Walden, originally. He no longer shows any shades of this, though.
** Charlie too, the guy depends on other people for ''everything''. As Alan put it: "You are a child. A high-maintenance child!"
* OnlyChildSyndrome: Jake was an only child up until the end of season 6, when his mother gave birth to Milly.
** Subverted with the rest of the cast. Which most of them are mentioned to have a sibling at least once.
* OnlySaneMan: Alan in the early seasons, although now he's probably the goofiest character on the show. Almost every character thinks of themselves as this (but especially Charlie, Jake and Alan). Berta seems reasonably sane in comparison to the others.
* ParentingTheHusband: Being fed up with this sort of situation is what causes the split between Bridget and Walden.
* ParentalNeglect: In later seasons, both Alan and Judith are guilty of doing this to Jake.
* PetTheDog: Berta has some of these moments.
** Charlie had a few here and there in the later seasons.
* PlayedForLaughs: Anytime Alan is almost suicidally depressed, Charlie is always thinking of himself no matter what.
** To be fair, Alan's never going to do actually do it, due to StatusQuoIsGod.
* {{Ponzi}}: Alan accidentally sets up a pyramid scheme by asking his friends and family for money for advertisements and paying them back with each other's money.
* PrettyInMink: Alan's literal dream woman is a LadyInRed who mentions she has several fur coats, that all feel the same in the dark.
* PrimalScene: In the episode "Don't Worry, Speed Racer", Charlie recalls a previously repressed memory about seeing his mother having sex when he was 8. This ruined WesternAnimation/YosemiteSam for him, because the guy had a big red mustache. When he tries to confront her, he ends up seeing her having sex again.
* ProductPlacement: Subverted. Characters are seen drinking Sierra Nevada Pale Ale on several occasions. Subverted by the fact that the labels aren't all that visible, but anyone familiar with them would recognize them.
* PutOnABus: Judith. Turns out Herb had an affair and she left him and took Mildred with her. A case of RealLifeWritesThePlot, since her actress left the show.
** TheBusCameBack: But she returned towards the end of the season.
* PutOnABusToHell: More accurately, Charlie was put ''in front'' of a ''train'' and then [[spoiler:sentenced to ''real'' Hell]].
* QueerPeopleAreFunny: Especially with Chelsea's dad and Walden.
* QuipToBlack:
** Parodied when Charlie and Alan are watching a crime show that's an obvious {{expy}} of ''CSIMiami'', with a female in the Horatio Caine role. After she makes her GlassesPull and snappy one-liner, they cut to "Squeeze Box" instead of "YEEEEEEEEAAAAAAAH!"
** And let's not forget the show's title: "[[GettingCrapPastTheRadar Stiffs]]."
* RealLifeWritesThePlot:
** The reason for Season 8's sudden halt in production, and ultimately why Charlie is revealed to have died between Season 8 and Season 9, is because of Creator/CharlieSheen's erratic behavior.
** Judith's actress left the show, so she was written out in Season 10.
** Jake's absence midway through Season 10 is (partially) down to Angus T. Jones trashing the show in an online video.
** Judith coming out as a lesbian, but then revealing she was just using as an excuse to divorce Alan, was in part due to the writers realising that ''Series/{{Friends}}'' did the exact same thing with Ross & Carol.
* RearrangeTheSong: After writing Charlie Sheen out of the show necessitated new opening titles (which also meant abandoning the shot of Angus T. Jones circa season one morphing into his present day form), someone involved in the production pointed out that they also needed to replace the child singer in the theme song.
* SatelliteLoveInterest: Kandi. She really showed no signs of wanting to know what Alan was like on the inside, just interested in the sex. And it really doesn't help that she dumped Alan soon after he got a gambling jackpot. But in her defense it was said that she dumped him because he didn't want to have children with her.
* SensitiveGuyAndManlyMan: Alan and Charlie.
* SerialEscalation: Just how bad Alan's life could be?
* ServileSnarker: Berta.
-->'''Charlie''': I don't pay you to mock me.
-->'''Berta''': Charlie, you'd have to pay me not to.
* SexySantaDress: A lady with... issues about Christmas wears one.
* ShootTheShaggyDog Chelsea's entire relationship with Charlie becomes this in universe and for many fans as well.
* ShoutOut: Happens occasionally, for example, when Charlie attempts to get Alan out of the house, and Bertha suggests they MakeItLookLikeAnAccident, Charlie shouts out to ''Film/TheGodfather'' (Even 'forgetting' to replace "Fredo" with "Alan"):
-->'''Charlie''': While my mother is alive, nothing must happen to Fredo.
** Once, in Season 10, Jake says, "[[Series/TheBigBangTheory Bazinga!]]" and adds, "That's from a TV show." This, naturally, was the title of said episode.
* ShutUpKiss: In "You Know What The Lollipop Is For", Jake has to give Missi some of these, because she [[MotorMouth never stops talking]].
-->'''Missi:''' You're just so sweet. I swear, I could just eat you up, but, you know, then I'd probably get a sugar rush, because you're just so sweet, and if you think I talk a lot now, you should really hear me after I- ''(Jake kisses her)'' I'm definitely gonna shut up now, because you're a really good kisser, and the last thing I wanna do- ''(Jake kisses her again)''
* SiblingYinYang: Charlie and Alan, on every possible front: Charlie is a suave, macho, self-confident, ladies' man while Alan is nerdy, effeminate, insecure and hopeless with women; Charlie is easygoing while Alan is uptight and anal-retentive; Charlie is a bachelor and a hedonist while Alan is a traditional family-values kind of guy...the list goes on.
* SomethingWeForgot: In "People Who Love Peepholes", Alan moves out of the house and leaves Jake behind.
* StacysMom: Evelyn.
* StalkerWithACrush: Rose. She is annoying and very creepy. She's also superglued Charlie's testicles to his thighs, poisoned Charlie to keep him sick so she can [[FlorenceNightingaleEffect take care of him and get him to fall for her,]] and it's implied that she pushed him in front of a train after she caught him cheating on her.
* StatusQuoIsGod: No matter what plot twists we're wrung through, Alan is still sponging off of Charlie, Jake is still a young doofus, Evelyn is still a self-absorbed drunk, Judith is still an absolute bitch, Charlie's still single, etc, etc. Well, except for the changes brought by Charlie's death between Seasons 8 & 9.
* StylisticSuck: Charlie's jingles.
* SuddenlySexuality: Judith divorces Alan in the Pilot after realising she's a lesbian, only to turn around & reveal that she's not later in the season - She just wanted an excuse to divorce him.
* SuddenMusicalEnding: "You're a Douche" from "Grab a Feather and Get in Line." [[http://www.youtube.com/watch?v=s77Cjuf5KIs Watch here.]]
* SuddenNameChange: In Season 2 Episode 2, Ryan Stiles' Character is introduced as "Greg" or "Dr. Greg Melnick." In all subsequent appearances or mentions, he is referred to as "Herb" or "Herb Melnick"
* TakeThat:
** An episode where Charlie is hired to write the American theme song to a dark and moody Japanese cartoon has him compose a cute, goofy song instead, which actually does get used for the show. This seems to be a stab at some of the business practices of [[FourKidsEntertainment 4kids]] entertainment at the time.
** Numerous to Charlie since Charlie Sheen was fired. There were even some beforehand in Chuck Lorre's vanity cards which may have sparked their whole feud.
** When Jake made his first appearance after Angus T. Jones publically slammed the show in Season 10, the opening minutes of the episode featured Jake saying he was beginning to think he was no longer part of the family & numerous cracks about him joining a cult.
* TakingTheKids: Judith used this as a threat from time to time, to drum up zany sitcom conflict so she can take advantage of Alan.
** She actually did this when she left Herb.
* TheThingThatWouldNotLeave: Alan. You could practically name this trope after him. It's UpToEleven in Season 9 and onwards.
* ThoseTwoGuys: Jake and Eldridge.
* TitleDrop: As mentioned above, every episode is named after a throwaway line of dialogue from that episode.
* ToiletHumor: Greatly emphasized in the ninth season that it's arguably much more gross than funny; the episode "Not In My Mouth" stands out in particular as you can see in the VomitDiscretionShot entry below.
* TooDumbToLive: How Jake hasn't killed himself in some crazy stunt is a mystery, given how stupid he's become.
* TookALevelInDumbass: Jake went from a fairly witty but lazy kid into a braindead pothead in Season 9.
* TookALevelInJerkass: Many characters, but most notably Charlie, Alan, and Jake:
** Charlie became more and more of an ornery prick.
** Alan evolved from a down on his luck man who had to rely on Charlie for financial support and felt bad about it to a sleazy weasel who happily mooches off of Charlie and then Walden without remorse and makes no effort to find a place of his own.
** Jake went from being a naive BrattyHalfPint in the early seasons to a DumbassTeenageSon and UngratefulBastard who loved mocking his father and uncle, despite everything they've done for him.
** Lindsay, [[JustifiedTrope though it makes sense since Alan really pissed her off by burning down her house by accident.]] Though she forgives him and leaves him for her ex-husband. She only puts up with him because he puts up with whatever habits she wants to have.
** Judith was always a JerkAss, but throughout the series she managed to become even worse, to the point that she abuses and neglects Jake, does everything in her power to make Alan's life even worse just for kicks (Like giving Kandi her divorce lawyer) and even treating [[NiceGuy Herb]] like he's a third class citizen for no apparent reason.
** Chelsea and Mia. By the time Charlie's dead, they outright loathe him, even though he was pretty good to both of them until they broke up.
* {{Transsexual}}:
** A transman in 'Old Flame with a New Wick' when one of Charlie's old girlfriends come back...with a new wick. He starts to date Charlie's mom. Once the obligatory torrent of puerile jokes are through, the episode is surprisingly sensitive.
** In season 11, Alan dates a transwoman briefly. Her treatment is very sensitive, save a few light-hearted jabs in the form of residue pre-transition behaviour (paying for him on a date, giving him her jacket, punching an obnoxious man being mean to him, and [[BreadEggsMilkSquick scratching her ‘phantom nuts’]]), which Alan doesn’t mind or even enjoys. In a surprising twist, [[spoiler:their relationship ends when she gets back together with her ex-wife, at Alan’s surprisingly selfless encouragement. (Although [[GirlOnGirlIsHot he does get a kick of watching them reconcile]].)]]
* TrueCompanions: Walden and Alan.
* UngratefulBastard: What grown-up Jake has become. He's getting better in his attitude towards his father in Season 10, though, most likely as a result of enlisting in the Army.
** Alan has shades of this throughout the whole series, but it's more obvious in the later seasons.
* UnproblematicProstitution
* UnsympatheticComedyProtagonist: Most of the cast.
* VanityPlate: Read about 'em [[ChuckLorreVanityPlates here]].
* ViewersAreMorons: The episode "Does This Smell Funny To You?" has a subplot about Jake not being able to find his Gameboy. When he does eventually find it, it's actually a NintendoDS. Apparently the writers thought viewers wouldn't know what a DS was almost two years after the DS came out. It is possible that Jake was just calling it a Gameboy, though (as many people in real life did at the time).
* VitriolicBestBuds: Walden and Alan again. Yes, Alan is still a moocher. And yes, Walden still acts like a lovesick high schooler. But by season 10 it's clear that they don't have any other friends but each other.
** Whenever they're not fighting, Charlie and Alan were this.
** Whenever they're united about something, Charlie and Evelyn are also this.
* VolleyingInsults: In "Not in Front of the Child", Alan and Charlie play a "word game"; they trade insults using each letter of the alphabet.
-->'''Alan:''' You are a lush!
-->'''Charlie:''' You are a leech!
-->'''Alan:''' You are a misogynist!
-->'''Charlie:''' You are a mistake!
-->'''Alan:''' You are a...What are we up to?
-->'''Charlie:''' N.
-->'''Alan:''' Thank you. You are a... necrophiliac!
-->'''Charlie:''' She was drunk, not dead, I challenge!
-->'''Alan:''' Fine. You...are a narcissist!
-->'''Charlie:''' Better. You are a nancy-boy!
-->'''Alan:''' You are old!
-->'''Charlie:''' You are odd...ly shaped.
-->'''Alan:''' ''(Phone rings)'' Hang on.
-->'''Charlie:''' You are a parasite.
-->'''Alan:''' Not your turn.
* VomitDiscretionShot:
** Both played straight and averted in "Not In My Mouth". Lindsey gets terribly drunk and vomits everywhere on Walden's private plane. Though we never see it coming out of her mouth, puke appears on Alan and Walden's shirts, and a [[SquIck great huge splat strikes the window]]. Also seen in the Charlie era, where following a night of binge-boozing he excuses himself to the kitchen to retch loudly in the sink.
-->'''Charlie''': Hey, guess who had a Cobb salad for dinner?
** The umbrella stand by the door has been used as a hurl receptacle twice, once by Jake during a bout of the flu, and another time by Charlie after an angry Melissa [[GroinAttack kicked him in the pills]].
* VomitIndiscretionShot: In one episode, Jake is doing an experiment called the "human volcano" which involves Coke, mentos, and a massive projectile vomit onto Alan.
* WeatherDissonance: Whenever Alan wants to take Jake on a camping trip or some similar outdoorsy bonding experience, it rains.
* WhatsAHenway: Occurs in "I Called Him Magoo," After Alan's girlfriend said her first time having sex was at a Police concert:
-->'''Alan''': Sting?
-->'''Girlfriend''': A little bit.
* WhatTheHellHero: Alan gives this to both Evelyn and Charlie in "A Sympathetic Crotch to Cry On". Evelyn isn't a hero, though.
* WhatDidIDoLastNight: Charlie. A lot. But one example in particular had him wake up the next morning finding out he tried to mail his pants back to the manufacturer because he [[GroinAttack snagged himself]] zipping up.
* WhoWillTakeTheKids: If something should happen to Judith and Alan ... ''Charlie?!?''
* WorldofSnark: The show is probably the ultimate example of this trope.
* WorldsSmallestViolin: Charlie mentions the world's smallest violin in an early episode.
* WomanScorned: This is ultimately the reason why Charlie died, in-universe.
* {{Yandere}}: '''Rose'''
* YankTheDogsChain: Alan on many unfair occasions.
* YouLookFamiliar:
** The actress who plays Chelsea, one of Charlie's few meaningful relationships for a long time (some would say ''too'' long) had already appeared in other roles in previous episodes, including the Pilot.
** The April Bowbly, who later played Kandi, made an earlier appearance playing a woman in Charlie's shower, called "Bubbles." It is possible Bubbles ''was'' Kandi, as Kandi shows up two episodes later and acts just like her (April Bowbly is credited as "Kimber" in that episode, even though she's never adressed as such in the entire episode).
** Jenna Elfman appeared in a two-part episode in the first season as a woman named Frankie. She later appeared as [[Series/DharmaAndGreg Dharma]] in the Season 9 opener.
** Judy Greer, who plays Walden's wife appeared in the fourth season as Herb's sister, Myra.
** Charlie Sheen and Jon Cryer had previously appeared together in ''HotShots''. Sheen and Ryan Stiles (Herb) appeared in ''HotShots Part Deux''.
** Jon Cryer played Lilly Truscott's dad in ''HannahMontana'', while Missi is played by, well, MileyCyrus. Angus T. Jones also cameoed as Siena's obnoxious cousin in the season premiere of ''HannahMontana'''s final season.
*** Though in the latter's case, the two never appeared on screen together.
*** It's worth noting both shows (season 1-3 of Hannah Montana) are set at a beach house in Malibu. The producers missed a gold mine of potential Actor Allusions.
** Emily Osment, who played Miley Cyrus' best friend on ''Hannah Montana'' guest starred in the Season 10 episode "Bazinga! That's From a TV Show" as the daughter of Jake's 36-year-old girlfriend, whom he was cheating on her with. They even openly refer to her as "Hannah Montana" at one point.
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Mennnnnnnnnnnnnnnnnnnnn . . .