The Quiet One: Ferb usually gets about one to three lines an episode (singing notwithstanding). Notable exceptions include "The Lizard Whisperer", "What Do It Do?", and "Excaliferb".
Ragtag Bunch of Misfits: At the beginning of the second Meap episode, the animators who made its trailers were described as a "ragtag group".
Raised by Wolves: Dr. Doofenshmirtz claims he was raised by a family of ocelots after his birth family disowned him.
A Rare Sentence: Absolutely tonnes. They're practically a staple of the show. The Clip Show episode "Phineas' Birthday Clip-O-Rama!" sums many of them up nicely, after being prompted by the line "Super-suit-generated egg renderings always make me a bit peckish":
"Nothing says 'mother's love' like a gigantic robotic platypus butt." "Why am I wearing a turtle on my head?" "I wanna float around! ...like men." "Am I sweating milk?!" "Gotta go, Stacy. Good luck with that llama legislation!" "Run for your lives! It's Gnome-a-geddon!" "Stickiness is the most underrated of all the -nesses". "I knew I should have gotten the down payment on the elephant." "It looks a little like a rhesus monkey wearing a powdered wig." "Oh no, you did not just tell me to hench." "What, you think we should have more Bulgarian folk-related elements?" "I'll be in the dairy section if you want to come yell at some cheese." "Dad, you might want to wipe the Queen off your face." "I too feel a certain element of kebab-ism." "Definitely the giant floating baby head." "I am to metaphor-cheese as metaphor-cheese is to transitive-verb crackers." "I just discovered why cows and frogs don't date." "Lawn Gnome Beach Party of Taffeta... make a note of that." "I'm calling Mom... and I am not using the banana this time!"
From "Candace Gets Busted:"
Doofenshmirtz: Oh, Vanessa! Thank goodness you're here! A platypus has tied me up in my own pants!
Vanessa: How did my life get to the point where that is not a strange sentence to me?
From "Der Kinderlumper":
Stacy: Can't this thing go any faster?!
Candace: I got the fennel pedal all the way to the rutabaga metal! And, yes, I know that's a weird sentence.
Real Women Never Wear Dresses: Averted, especially with Isabella; despite wearing pink and having a fondness for unicorns, she's also beaten Buford at sports, expressed a fondness for gross things and saved her love interest Phineas from trouble about as much as he's saved her. Plus her Fireside Girls' manual includes a lesson on car maintenance.
Jeff "Swampy" Marsh: Whoa, whoa, whoa. So—so they're just gonna be talking in "cave-talk"?
Reasonable Authority Figure: At least within the show's context, Linda is actually an aversion. She does love her sons, but she's absolutely the only authority figure shown who has who has the slightest disagreement with the things Phineas and Ferb do. The episode "What Do It Do?" also shows that when the unusual crops up, her ability to go completely bonkers over it can even rival Candace.
Although they are a bit on the goofy side, Lawrence, Major Monogram, and Phineas and Ferb's two sets of grandparents play this straight.
All eight boys who rode the first rollercoaster with Phineas and Ferb have a goodly number of appearances in crowd scenes. However, only Dimitri Popaunicolas ever plays an important role in any episode: he holds a red balloon in the rodeo in 'Robot Rodeo',angering the mechanical bulls. Buford actually lampshades the group's status (or, at least, the status of the trio formed by Pedro, Dimitri, and the boy who remembers Irving) as extras in the episode with the second rollercoaster, stealing the poster to ride for free, noting that he deserves to ride more than them, because they are extras.
Django was typically the first person to show up in any crowd for the first season, culminating in his own plot, after which he rarely shows up.
Re Cut: "Phineas and Ferb Christmas Vacation" has an extended edition that restores a cut song.
Red Herring: Quite literally, in "The Lake Nose Monster". But the Red Herring leads them to Nosey, so it's not a red herring, but it is. Gosh, did they just put that in to confuse people? (Why, yes. Yes they did.) Also the pineapple in "Elementary, My Dear Stacy".
In "Remains of the Platypus", Doofensmirtz has brainwashed Perry to think he's a butler. Carl laments "Oh, if only you had your hat", and there's an entire sub-plot about Linda finding it. It doesn't do anything, and Perry breaks out of the brainwashing because of a Note to Self instead. The song lampshades this!
Reed Richards Is Useless: Any creation by the boys, Doofenshmirtz, or anyone else will be undone by the end of episode and not mentioned again, even though some of them have incredible world-changing potential, such as a pair of Stargate-style teleportation rings.
Subverted when Phineas mentions "A jellybean-based monetary system for emerging nations...I dunno, I'm just not feeling it!"
Well they arekids, and it's implied to be averted outright when the boys get older in time-travel episodes.
Revealing Coverup: In "Where's Perry? - Part 1", Doofenshmirtz had an inator that'd keep everyone's gym equipment locked away so people would be too out of shape to prevent him from taking over. After Perry the Platypus destroyed that inator and left, Doof revealed to Norm that was just to trick Perry into thinking he wasn't up to anything else. Doof's real plan was using another inator to turn Major Monogram evil so he'd take over the O.W.C.A.
Actually, Perry didn't even get to destroy the -inator. Doofenshmirtz pressed the self destruct button while Perry watched. The expression on his face said: "I missed my family vacation for this?"
Reverse Polarity: Phineas and Ferb say this in "Doofapus" when they make their smoothie maker able to turn things back into solids.
Rewind, Replay, Repeat: Although they only do one replay; Perry was trying to determine whether Doof's Dull-and-Boring-inator had fired before being destroyed. It had.
Also, Mitch, when he shoots himself with a beam of pure cutonium that he had extracted from Dr. D.
Let's put it simply and make that every darn member of his and Meap's kind.
The chinchillas in "Der Kinderlumper" (until they are hit by Doofenshmirtz's inator).
Ridiculously Fast Construction: One episode lampshades this by having Phineas begin building a submarine at the same time Isabella begins making a cheese sandwich. When Isabella returns with the sandwich, Phineas is just finishing up the submarine.
Lampshaded again the second time they build a submarine (to search for Buford's missing fish), complete with fourth wall breakage
Ferb: It usually takes us a montage.
Also lampshaded in Candace Disconnected, in which Phineas tells Candace that it took 40 years to come up with cellular phone technology, so they can build her one in 38 minutes. And they build two. With teleporter functionality.
Not to mention in "Just Passing Through" when Baljeet complains that "You can build a roller coaster in a day, but it takes you 12 minutes to pump up a tire?!"
Right Behind Me: One of the many reasons Doofenshmirtz has been beaten up by big characters.
In "The Monster of Phineas-n-Ferbstein" Constance uses this, word-for-word.
It's been said the theatrical film will feature this.
The second Musical Cliptastic Countdown has live action hosts/guest stars, unusually for the show.
Rosencrantz and Guildenstern Are Dead: The episode "Isabella and the Temple of Sap" chronicles the lengths that the titular character and her Fireside Girls troop are prepared to go through to get an object used by the boys in the previous episode, as well as Pinky the Chihuahua's fight against his evil nemesis, Professor Poofenplotz.
Royalties Heir: Heinz Doofenshmirtz invented a device that corrects people's eyesight and the royalty checks he receives for this make him feel uncomfortable that one of his inventions is being used to do good.
Sadistic Choice: In "The Beak", Phineas and Ferb have to pick between Isabella falling to her death or letting a billboard fall on people. Third option? There are two components of The Beak. Phineas (in control of the upper body) somehow gets out to save Isabella and Ferb (in control of the lower body) takes care of the falling billboard.
Sanity Ball: Whenever Candace is in full busting mode, expect her to drop this.
And during a few of Doof's more absurd schemes, most notably the one in "Perry Lays an Egg".
Sanity Slippage: Candace is having a sort of series-wide version, due to her busting attempts and hallucinations becoming more and more Flanderized as the the show goes on.
Played for Laughs in "Bully Bromance Breakup". Baljeet insists on climbing Danville Mountain with only his natural strength. Unfortunately, Phineas and Ferb can't stand not building anything. Eventually...
Phineas: ICE CHALET!!! (runs off at the speed of light) Ferb: If we hadn't been able to invent something soon, I was going to scream.
Sapient Cetaceans: The OWCA has whale agents. In addition, a dolphin is apparently one of the world leaders in this universe.
Sarcasm-Blind: This moment in "The Mom Attractor" shows that Phineas doesn't exactly seem to grasp the notion of it:
Phineas: Well, y'know how we do something new every day?
Candace: (Pulling a priceless false-shocked expression) Noo...
To be fair, it was the laser scene from Goldfinger, which Bond didn't actually escape (the villain turned it off after deciding to use him in a ploy rather than kill him).
Also, in "That Sinking Feeling", Phineas claims they've seen a movie about a cruise ship sinking, and it seemed to have worked wonders for the romantic aspect of the film, which is where they got the idea for Baljeet's date with Mishti.
Doofenshmirtz, while explaining his plan to flood the coast and make his house beachfront property, rips off his outfit to reveal... The edges of a speedo peeking out from above the wooden railing in front of him.
Happened to Ferb once too. Good thing he had that giant spool...
More than once, actually— it happened again in Swiss Family Phineas.
Science Fair: The subject of two episodes, appropriately named "Unfair Science Fair" and "Unfair Science Fair Redux".
Science-Related Memetic Disorder: Doofenshmirtz, following the example of the mad scientist at the top illustration of the trope page, has a big lever as a on/off switch for the lights. He also has an obsession with installing self-destruction buttons and other buttons or dials that actually make it easier for Perry the Platypus to thwart Doof's plans. Even the titular characters aren't completely immune to the self-destruction button obsession as evidenced when they built a Rainbow-inator.
Schizo Tech: While arguably invoked all the time, the episode "Doof Dynasty" shines a bright spotlight on it. Taking place in 1542 in China, they often talk about Phineas and Ferb using "tech slightly more advanced than we have today."
Perry (as of "Sipping With The Enemy"), Carl (as of "Thanks But No Thanks") and Stacy (as of "Druselsteinoween") are this in regards to Monty and Vanessa's relationship.
Secret Ingredient: In "Meatloaf Surprise", the secret ingredient in the Doofenshmirtz family meatloaf recipe is hate. "Usually it's love, but Great-Grandma Gretel had some issues."
See-Thru Specs: "No More Bunny Business", where Phineas and Ferb created X-Ray Glasses.
Seinfeldian Conversation: Buford and Baljeet occasionally have conversations like this. The most straightforward example would be from "Backyard Hodge Podge", when they discuss what a vegetarian turned zombie would eat.
Candace: I'm sorry we had to clean up everything we destroyed... and had to rebuild it. I'm especially sorry I made us miss our spa appointment. But most of all, I'm sorry for being a bad friend. I was just trying to impress Jeremy and I lost sight— Stacy: Okay, you can stop that right now. You're starting to sound like one of those TV shows we like to make fun of.
Done to cartoon makers in "Out of Toon".
Self-Parody: In "The Wizard of Odd", the credits contain the song "Rusted", a parody of the earlier Phineas and Ferb song "Busted".
Also "Perry the Teenage Girl" (parodying Perry's regular theme) and "Couldn't Kick My Way Into Her Heart" (parodying "Snuck Your Way Into My Heart").
Sensitivity Training: In one episode, the Flynn-Fletchers were sailing and Baljeet and Buford were watching over Perry the Platypus for them, which kept him from responding to Major Monogram's call. Monogram commented he couldn't send another animal agent because all of them were doing sensitivity training.
In another episode, Major Monogram was doing sensitivity training and his response to Carl saying animal agents were exempt from it suggested what Monogram needed the training for.
Sentient Cosmic Force: Candace think that there's one preventing her from busting her brothers. Whether there actually is one is ambiguous.
Phineas and Ferb, by contrast, accomplish their goal every day.
Serious Business: In the Clip Show episode, Perry gets called into the OWCA headquarters so that they can tell him that his performance has been suffering. It turns out that they mean that his entrances have been getting boring, not that his mission performances have been poor. The look on Perrys face indicates that he is very upset by this.
"Canderemy" is an episode where Stacy challenges Candace's loyalty, demanding the duo spend time together without any mention of Candace's boyfriend Jeremy. Candace becomes literally stuck on Jeremy, and has to hide him while spending the day with Stacy. The two get unstuck just in time to prevent Stacy from seeing him. Immediately after he leaves and it seems Candace has succeeded in hiding him, Stacy anticlimactically reveals she knew he was there the whole time. At first it seems like a subversion since Candace did refrain from calling attention to him, but she definitely devoted more energy to hiding Jeremy than she did spending time with Stacy.
Intentionally done by the Fireside Girls in "Waggle Dance"
Shaped Like Itself: The song "Little Brothers". Also, "Space Adventure! It's an adventure in space!"
"That's a very nice imitation of yourself, Candace."
Shapeshifter Showdown: Doofenshmirtz and Perry have one in "Phineas and Ferb: Hawaiian Vacation!", though this is a rare example where neither of them have any control of what creatures they turn into, so they just have to make the most of it.
It's almost confirmed in "Phineas and Ferb's Quantum Boogaloo", when Amanda refers to Isabella as her aunt. A twist is added when Candace points out that Isabella will still be an aunt if she marries Ferb. Then Ferb starts flirting with her.
This is it, Isabella (and Phinbella shippers)! She's finally going to spend some time alone with Phineas at the end of "Canderemy"!! Oh wait,there was that second Combine-inator beam.
Midway through "Candace Disconnected", Phineas teleports directly in front of Isabella, so close that his nose is literally touching hers. She acts her normal flirtatious way, but Phineas doesn't get it when he teleports away, as usual. Still, it's the closest those two have ever gotten to a kiss. That they both remember, anyway.
The creators seem to like teasing lots of different pairings, actually — aside from the Official Couples they've also dropped hints that Baljeet may have a crush on Isabella, Vanessa flirts with Jeremy at one point before quickly losing interest, and Albert's interaction with Candace...
Baljeet and Ginger get a little in "Bee Day" and "Bee Story". It's the first time we see them actually interact. Baljeet tells Phineas to wait a little while he talks with Ginger. And Ginger actually listed to what Baljeet was talking about where he said earlier most people either leave or fall asleep by that point.
Shown Their Work: Though they do sometimes forget to do this, there are plenty of examples. Take, for example, the Tsiolkovsky rocket equation gag from "Out to Launch". With the obvious exception of the bomb/smiley face punchline, that is what the Tsiolkovsky rocket equation looks like.
Take this line from the song "X-Ray Eyes".
Sometimes photons behave like a wave,
But they're particles when you reflect 'em.
The Lion-Tiger-Bear Guy from "The Wizard of Odd". No, it's not just a pun on the famous quote, there is an animal in the original Wizard of Oz book that is a hybrid of all those animals.
In "Doofapus", Doofenshmirtz mentions that platypuses are in the genus Ornithorhynchus and come from eastern Australia.
In "Where's Perry?", Ferb accurately describes the discovery of the platypus by European scientists, even mentioning that it was George Shaw who wrote the description of the species in 1798.
The bird that comes to perch on the rhino agent in "What'd I Miss?" is a yellow-billed oxpecker, a species that is actually known to be symbiotic with rhinos in real life. What it was doing in North America, on the other hand...
"Primal Perry" mentions platypuses having venomous spurs and shows Perry using his bill to probe the bottom of a pond.
The show sometimes notes that platypuses sweat milk. As female platypuses do not have teats, they secrete milk directly from the skin on their belly, thus, in a way, sweating milk.
Many of the facts stated about bee biology in "Bee Day" and "Bee Story" are correct.
The documentary Candace watches in "Perry Lays an Egg" mentions the scientific name of the green sea turtle, Chelonia mydas.
"The Return of the Rogue Rabbit" has several characters identifying rabbits as lagomorphs and specifically saying that they are not rodents.
Though the cave salamander in "Save Summer" is colored more similarly to a surface-dwelling salamander, external gills and lack of eyes are common traits among cave salamanders in real life.
One of Candace's inventions (long story) is picked up by Doofenshmirtz's hook, she's forced to dangle from the edges while Stacy hangs onto her legs. She glances up her skirt but quickly looks down after that.
Doofenshmirtz is very close in getting an upskirt view of Candace in The Movie while the main characters dangle in chains above a lava pit, but for most of the time, he was looking down.
Slow Clap: Doof in "Phineas and Ferb and the Temple of Juatchadoon". And Norm, about a minute later.
Doof: Way too soon for a callback, Norm!
Also in "Where's Perry"
Monogram: Carl, you slow clapping fiend!
Snap Back: Doofenshmirtz seems to get into very compromising situations (some of which seem out-and-out irreversible) and be okay again by the next episode.
Every object in the Universe is expanded to 9 times its size by Phineas and Ferb's growth elixir in "Attack of the Fifty Foot Sister", but is somehow reversed later offscreen.
Or not... Once every object in the universe was hit, relative sizes all matched again. If it never got corrected, who would know?
Candace disintegrating into dust at the end of "The Curse of Candace". (Granted, it's implied that Phineas and Ferb try to fix that one, but that still doesn't explain Candace seemingly being a vampire for that episode.)
In "It's About Time", Monogram appears to have been hit by Doof's -inator of the day offscreen, turning him into a immobile statue. This isn't shown to be fixed by the end of the episode.
Invoked in "Agent Doof", where Phineas, Ferb, Linda, and the Fireside Girls are all turned into babies by the end of the episode, causing Candace to hope that everything is back to normal by the next episode.
Snipe Hunt: In "Undercover Carl", Major Monogram sends Perry on a literal wild goose chase because Phineas and Ferb were allegedly involved in Doofenshmirtz's daily scheme, and he feels that Perry is too close to the case. He finds the goose.
Snowclone Title: Quite a lot. Heck, there was even one in the Japanese version.
Doofenshmirtz sets up a trap with a piano hanging over the door. As the trap is revealed dramatic music plays ... from a man sitting at the piano.
Again in "She's The Mayor".
Solo Duet: Two counts; the first in 'Mom's Birthday' with a recorded version of Candace and Candace singing live. The second is from 'Split Personality' where the two Candaces sing a duet about how happy they are to be separate.
Something Completely Different: Considering much of the show's humor revolves around deconstructing its own established structure, there have been too many examples of this to list. In particular, the 3rd and 4th seasons have episodes that take place in alternate dimensions/timelines (Ancient China, Indiana Jones, caveman, etc) which let them really change the dynamics.
Soundtrack Dissonance: "It's a Perfect Day" playing while Candace is being chased by a mob of angry animals.
To a lesser extent, the spa day was accompanied by a rap song.
Stalker with a Crush: Candace arguably fits this role, particularly in the early episodes where she does things like photograph Jeremy hundreds of times and watch him through binoculars instead of just walking up and talking to him, not to mention her elaborate lists and scrapbook projects (which are apparently a secret from everyone besides Stacy). It seems it's not in the nature of this family to do things by halves.
Not a typical example of this trope in that Jeremy and Candace develop a healthy relationship based on mutual affection. But the affection on the one side continues to be highly obsessive.
Stand-In Portrait: Candace in the opening theme. Used again in the episode "Fireside Girls Jamboree".
Stating the Simple Solution: This is Doofenshrmirtz' thing. Subverted in that it is Doof himself who states the simple solution, only to dismiss it himself because that alternative, truly simpler solution would be "too complicated".
Status Quo Is God: Whenever Candace realizes that her brothers aren't actually nuisances, she warms up to them. But by the next episode she's back to her normal frantic self.
Of course, one of the biggest jokes of the series is that no matter what happens, it will all go back to normal. Somehow.
Broken in "Happy Birthday, Isabella", when Stacy discovers Perry's secret identity, but does not have her memory erased and keeps her knowledge a secret from the O.W.C.A.
Stealth Pun: Love Händel is named in the style of '80s rock bands, and the pun becomes hilarious when one realizes that people who listened such bands in their heyday are now middle-aged.
In "Lights, Candace, Action!" Candace's personal trainers are a pair of fleas.
Roger and Heinz Doofenshmirtz's caddies in "She's the Mayor" are Katy and Perry, respectively.
Phineas solved one of the puzzles in 'Escape from Phineas Tower' by undoing a lock with a bone. That is to say, a skeleton key.
In "The Belly of the Beast" Ferb pilots a giant mechanical shark from inside a suspended motion-capture shark suit, propelling it forward by agitating the tail. In other words, Phineas may be the shark's captain, but it's Ferb who has to shake his finny ass.
Stock Audio Clip: Candace: several different screams, "Meep...". Perry: chattering. Isabella: "Whatcha doin'?". Bob Weber: "OK!"
Stock Footage: Being a remake of the very first episode IN SONG, "Rollercoaster: The Musical" reuses a lot of footage from that episode (though most of the reused lines were rerecorded and some of the jokes were changed).
The Stoic: Ferb doesn't have a whole lot of expression—notably, his face remains completely blank as Phineas employs Puppy-Dog Eyes to persuade Candace to keep Nosey's secret in "The Lake Nose Monster".
Perry as well, though it's more of a "cool, steely" example than an "entirely emotionless" one.
And the creators know just when to break formula, if just for an episode.
Many, many episodes lampshade this, especially with Perry and Dr. Doofenshmirtz.
Stuff Blowing Up: Random objects explode during the fight scene against the Ninja Vampires in "Doof 'n' Puss".
Stylistic Self-Parody: Carl explains he has no sense of smell since he was born without nostrils, alluding to the way his nose is drawn.
In the Clip Show episode, Doof tries to use his hand to signal the number 'four' but realizing he wasn't drawn with quite enough fingers, he also stuck out his thumb.
Several episodes poke fun at Candace's outlandishly elongated neck.
In "Hide and Seek", Doofenshmirtz sees Phineas and Ferb with their friends on camera and mistakes them for a "kiddie TV show".
Monogram points out that he can see the smell of Carl's sandwich in "Misperceived Monotreme".
Monogram and Doofenshmirtz comment on Phineas having a triangle head and Ferb having green hair in their commentary for "The Chronicles of Meap".
In the halloween episode, Carl notes that his Monogram Desguise isn't complete because he couldn't put both eyes in the same side of the nose.
Phineas and Ferb even get mistaken for aliens in "Sci-Fi Pie Fly". As it turns out, the real aliens in that episode really do look like them.
Stylistic Suck: Doof'n'Puss - a show Doof pitched to Seth...er, Jeff McGarland. With an insane premise and ridiculous plot. Even the film stock in those segments is grainy and faded.
Styrofoam Rocks: Played with. When they are constructing their life-sized replica of Niagara Falls, Ferb (on the ground) picks up a boulder and throws it all the way to the top of the structure. Phineas says that even though he knew that that was paper-mâché, the throw was still very impressive.
They show up again in "The Great Indoors", when Jeremy tries to explain to Candace that they're just paper-mâché.
The supposed "lost lines" of "The Cat and the Fiddle". Phineas suspects this trope is why they were "excluded by most versions".
Suck E. Cheese's: "Gunther Goatcheese's! The goatcheesiest place in all of Druselstein!"
Sudden Anatomy: Perry only has teeth when they're needed for an expression.
He also only has fingers when he's in his agent mode. Otherwise, his hands are merely little pads.
Sudden Downer Ending: Specifically for Doofenshmirtz in "Chez Platypus". During the entire episode, he goes on a date with an equally evil girl, falls in love, sings the most adorableVillain Song in history with her, and then says that he has "Never been so happy in his entire life". Then, in literally the last six or seven seconds, he shoots himself in the foot when she is hit by his own abandoned De-Love-Inator and leaves him.
Summon Backup Dancers: Often. In "Rubber Bands and Rubber Balls" the factory has a breakroom specifically for them. Doof also has back-up dancers during his musical numbers. We see him paying them afterwards.
The title characters use Candace's cell phone in prehistoric times and on Mars. Candace lampshades this in "Unfair Science Fair Redux" by asking "How is it we have bars here?" on Mars.
In "Candace Disconnected", Candace's new cell phone is broken and her mother wouldn't buy her a new one because she's already lost so many of them. The last one bought couldn't be used for anything other than making and receiving calls. Phineas and Ferb then built one that could even be used as a teleporting device.
Super OCD: Phineas' obsession with inventing things in "Bully Bromance Breakup" is either this, or a G-Rated Drug.
Again with "Bubble Boys" and "Isabella and the Temple of Sap".
And "Bee Day" with "Bee Story".
Take Our Word for It: Doof, Rodney and Lawrence once entered a contest to become leader of L.O.V.E.-M.U.F.F.I.N. (Lawrence misread the address of where he was supposed to go and believed he entered a contest to become king of pharmaceuticals) and, after he was hit by a ray that turned him evil, there was an event where each contestant had to scare the others with their evil glare. We never get to see Lawrence's but all characters who saw it were horrified.
There was also one directed quite squarely at parents who blame the media for their kids acting bad instead of their bad parenting in "Phineas and Ferb Get Busted".
"Today on "The Morty Williams Show," "My Kid Is Bad, and I Want to Blame Others!""
"The Doonkelberry Imperative" is one on American politics. And it's hilarious.
Take That, Audience!: In the song "Hey Ferb", Phineas brings up how glad he is not to have spent his summer vacation sitting and watching TV, while "Summer Belongs to You" encourages the audience to "not waste a minute sitting on that chair". Both of these activities are likely to be what the viewer is doing... in order to watch the show.
The Beak Song states that you really are pretty lame compared to the Beak. (Seriously, what d'ya bench?)
Taken for Granite: In one episode Doofenschmirtz's Freeze-Inator temporarily petrifies Major Monogram, so Carl has to give Agent P his assignment. Later on it manages to freeze a tyrannosaurus that our heroes have accidentally brought back from the past, naturally a split-second before it would have eaten them (and Mom would have seen it). Conveniently, it happens to be in the local museum, so everybody assumes it's just a statue.
Taking the Bullet: The robot Candace in "Where's Perry?" does this for the real Candace.
Talking Animal: Candace when she switched bodies with Perry (the Platypus).
The Tape Knew You Would Say That: A variation - in "Meapless in Seattle" Linda was listening to french language learning tape, that described what happen right behind her.
Taxman Takes The Winnings: In season 4, "Druselsteinoween", when Doofenshmirtz inherits a Drusselsteinian castle from his great aunt, he enlists Perry to help him find a large, hidden treasure that his Great Aunt has placed somewhere within the castle. After they find the treasure, in the form of bags of money, various local officials comes to his castle and makes Doofenshmirtz pay a bunch of fees for owning a castle. He gives each of the officials a bag of money which leaves him penniless.
Team Rocket Wins: In the episode "That Sinking Feeling" Dr. Doofinshmirtz manages to get rid of the lighthouse thus draging the boats away allowing him to get a good nights rest. He even gets mad a Perry for losing and kicks him out of his house.
Though, in the Credits Gag, the lighthouse crashes into his building that night, bringing the boats with it, so not a full success.
Tempting Fate: Phineas is the king of this in "Summer Belongs to You!" where even as bad things keep happening, he won't stop talking.
Phineas: We might even arrive in Danville ahead of time! Y'know, barring any unforeseen mishaps. *cue boat falling apart*
Phineas: Looks like a real summer storm! Well, our plan to stand alone in a field with a metal rod is out.
"You can't stop me, Perry the Platypus! You couldn't stop me with a billion Perry the Platypuses!" Cue Doof falling through a skylight, straight into the assembly line making hundreds of Perry the Platypus toys.
"This building is so well-constructed, there is no force on Earth that can move it before your mom gets home!" And then it gets hauled away by the moon...
That Thing Is Not My Son: Subverted, as most of the tropes are. When Doofenshmirtz thinks he's insulted Vanessa by saying he'd rather have a son than a daughter, Norm tries to be a surrogate son. Doofenshmirtz repeated refuses to acknowledge him as such, though.
Theme Music Power-Up: Whenever Perry does something awesome (i.e.: every other scene he's in), his theme song plays.
There Was a Door: Very frequently lampshaded, up to the point where, Doofenshmirtz actually convinces Perry to pay for the broken door.
They Fight Crime: A fugitive semi-aquatic special forces amateur stage magician framed for a crime he didn't commit- the 1865 assassination of Abraham Lincoln - joins forces with a rogue trillionaire inventor extreme fighting champion from the future. Together with the aid of R.I.C.K., their super crime-fighting high-tech talking rickshaw, they'll bring hope, justice, and varying degrees of aquaticness to a tri-state area in peril. Together, they are...Doof 'n' Puss.
Thinginator: If you watch a marathon of this show, and take a shot for every time you hear the suffix "-inator", you will be fall-down drunk in no time.
Caution: Avoid the Clip Show if you do this, or you'll be in serious trouble.
Doof occasionally uses a pair of "-inator" suffixes, with a hesitation before the second one.
Lampshaded in "Unfair Science Fair" when Doofenshmirtz flashes back to his first science fair and talks about his very first invention, called simply 'INATOR'.
Doofenshmirtz: Yeah, I wasn't very clever with names back then so it was just 'Inator'.
-inator seems to have been retooled into referring to pretty much any device intended for evil in later episodes. In "Finding Mary McGuffin", Doof refers to his recent purchase as simply an -inator, since he didn't know what it did and couldn't give it a proper name, and in an evil scientist contest, the devices they build are all referred to as -inators.
And then retooled again, with every Mad Scientist apparently using their own unique naming convention for their devices. So far, Doofenshmirtz sticks with "-inators", Rodney uses "-izers", and Dr. Diminutive uses "-erators".
This Is My Side: Doofenshmirtz tries this when he is stuck on an island with Perry in "Phineas and Ferb Hawaiian Vacation", but it doesn't last long.
This Is No Time for Knitting: In the DVD character commentary of "The Chronicles of Meap", Doofenshmirtz is shocked that Candace would play baseball in a life-or-death situation, while Monogram (quite rightly) realizes that she's saving the day.
Don't ever play Skiddley Whiffers with Candice, because she'll beat you.
Heck, Jeremy may possibly be the physical manifestation of this trope to Candace on the show. Despite all the horrible things that happen to Candace and her futile efforts to bust her brothers, Jeremy's mere presence (along with a kind word or a helpful gesture) would always lift her spirits up somehow.
Every now and then, good things happen to Doofenshmirtz. Although most of those tend to be yanked away, one of the ones the weren't (and usually one of the most satisfying parts of the series) are the times when Vanessa actually acknowledges that Heinz is actually a pretty decent dad, all things considered.
A good example is "We're Getting the Band Back Together". While Doof was defeated by Perry, the launch of the giant firecracker burned all the birthday decorations for Vanessa's party, giving the area a gloomy atmosphere that she actually enjoyed. The firecracker also launched him straight to the Love Handel (his favorite band) reunion concert, which he hadn't even been aware was happening and would have missed otherwise.
In "Finding Mary McGuffin", Doofenshmirtz manages to get out of being beaten by Perry since the -inator he purchased didn't actually do anything evil, and he even seems to get a chance to bond with Vanessa at the end.
Sadly averted in 'Chez Platypus' when Doofenshmirtz finds his perfect second half with all and a crowning music of awesome, unfortunately, Doofenshmirtz' own De-loveinator drops onto the dock where they are standing and it fires its ray at Doofenshmirtz's date, making her unable to feel love ever again.
In "Happy Birthday, Isabella", Isabella (with some help from Ferb) gets to have her birthday wish-to have time alone with Phineas-come true.
Tied Up on the Phone: In the episode "De Plane! De Plane!", Doofenshmirtz manages to trap Perry the Platypus in a phone cord for a while.
Toilet Humor: Not nearly as much as you'd expect from a kid's cartoon, but yes, Doofenshmirtz, Buford, and Baljeet being the main dealers of it.
Baljeet: (in response to Buford weighing down a floating bounce house simply by climbing out of it and hanging onto an attached rope) How is that possible? He weighs no more down there than he did up here!
The Tooth Hurts: In "Bubble Boys", during Dr. Doofenshmirtz's attempt at country-western singing:
Audience Member: This stinks so bad I wanna break somethin'! (He grinds his teeth together and they shatter with the sound of glass breaking.) Audience Member: ... Yeah, that really wasn't worth it.
Doof's love of almond brittle has come up quite a few times.
Several other(often one-shot) characters as well. The defrosted Neanderthal Kronk and the platypus from "Misperceived Monotreme" are both crazy for sandwiches, Candace and Pinky narrow it down a bit to grilled cheese sandwiches, Steve the Chameleon loves mushrooms, and Dennis(or Mr. Cutie Patootie) was undone by his obsession with carrots.
Trailers Always Spoil: The promo for "Candace Gets Busted" basically said it all - it ended up as a small get together, but then escalated into an insane party, and shows Linda grounding Candace. Then it gives a clip of the song "Candace Party" from said episode.
"Where's Perry? Part 2" has fallen victim to this as well. Basically, the promo shows Perry in Africa, when we were supposed to be left on a cliffhanger on what happened to him in Part 1.
During some reruns of "Phineas and Ferb Musical Cliptastic Countdown Hosted by Kelly Osbourne", Disney Channel played a commercial revealing the #1 song on the countdown, spoiling the episode for those who hadn't seen it. (In case you're wondering, the winning song was Everything's Better with Perry.)
Played with in the preview for "Happy Birthday Isabella" which reveals that somebody would find out Perry is a secret agent but does not say who. It's Stacy.
Translation: Yes: In Meap's native language, the word "meap" alone can summarize phrases that are much longer in English, such as "Red alert! Red alert! Mitch has the cutonium, and he's on his way there. You must rally the troops, and head him off at the evil fortress. This is war!"
Unfortunate Name: In the episode The Beak, we get Khaka Peu Peu. note In case it's not clear, its pronounced "Ka-ka Poo-poo.
Which, according to him, translates to "the/that strong fist".
Buford's last name is Van Stomm. Roughly translated, and adding an extra M, that is Dutch for "of the stupid."
Jeremy's band is called "Jeremy and the Incidentals". The definition of incidental is "accompanying but not a major part of something", implying that Jeremy's band members are not as important as he is. Poor guys.
Unusually Uninteresting Sight: Some of the delivery guys parody this with the "Aren't you a little young..." gag, but the citizens of Danville don't seem particularly surprised when, say, a rollercoaster spanning the entire city shows up out of the blue. In particular (though it's completely understandable, being a secret agent platypus and all) Perry's deadpan reaction to seeing the boys (and Lawrence) fly by on their living room floor (in itself, a Shout-Out to Aladdin) was marvelous.
Just about every citizen of Danville, major or minor, lives this trope in spades, to the point where it would take something as dangerous as an enormous swarm of armed robots attacking everybody in order to faze them. (And even then some of them didn't mind. "It's okay, it's a rental!")
Up to Eleven: Almost everything the kids do. This leads to hilarity when the boys try this in areas where it doesn't work, such as trying to create a romantic atmosphere by dumping an entire box of flower petals on the scene at once (sometimes including the box as well).
Almost any trope than can be applied generally to the show that can also be applied to "Summer Belongs to You" got the volume cranked up.
Played straight in "Mind Share", which gives the message of not trusting everything you see on the Internet.
Victorious Childhood Friend: Candace and Jeremy, though they met at a later age (11) than most examples. Implied with Isabella and either Phineas or Ferb in "Quantum Boogaloo".
Word of God from Povenmire says that its with Phineas. What's unknown is if it happens on or offscreen.
Victory Is Boring: Candace goes through this when she realizes she misses her brothers in "Phineas and Ferb Get Busted!"
Plus "The Greatest Lazy Day Ever", where the boys decide to do nothing all day, and Candace can't stand it.
In "S'Winter", when Doofenshirmtz traps Perry in quick-hardening chocolate, he complains that he's not responding to his gloating, or trying to stop him. He even extends the countdown before firing his laser to give him more time.
"What, you're just going to stand there like a dead fish? I'm giving you a chance to do something here! Honestly, this used to be more fun."
Viewers Are Morons: The feedback the creators got from Hollywood when they were pitching the series was that it was too smart for a kids' show.
Visit by Divorced Dad: Inverted with Doofenshmirtz, since his daughter comes to live with him on some weekends. Completely averted with Phineas and Ferb's respective missing parents.
Visual Pun: Candace admires the way the boys have fitted out her old tree house with all mod cons, and says "And look at all the bells and whistles!", passing by a wall with bells and whistles mounted on it.
In "Summer Belongs to You!" and "Ladies and Gentlemen: Meet Max Modem!", Phineas and Doofenshmirtz, respectively, deliver speeches about their intentions on boxes marked 'soap'.
In "De Plane! De Plane!":
Phineas: Pilot's instruments? *looks at the cockpit controls* Check. Co-pilot's instruments? Ferb: *in front of several musical instruments* Check.
"Voyage to the Bottom of Buford" shows Buford's origins as a bully. The first guy he beats up finishes the fight pinned to a literal clothesline.
In "Canderemy" Stacey complains that she never gets to hang out with Candace alone anymore,because she's always with Jeremy, i.e. "joined at the hip." Moments later, the Combine-inator causes Candace and Jeremy to become literally joined at the hip.
Vocal Dissonance: Meap, when using any of his universal translator mustaches to speak English, has an unexpectedly deep voice.
This has also been done as a gag with Candace, Isabella, and Gretchen. In Candace's case her allergy to wild parsnip alters her voice, but the other two appear to be able to do it intentionally.
Vocal Evolution: Phineas. Just listen to how he sounds in the pilot and the title sequence, and compare it to the rest of the series.
Jenny, on the other hand, seems to be suffering vocal decay; in some of more recent appearances, she sounds like she has a cold.
Irving's voice also seems to have gone slightly lower in "Not Phineas and Ferb".
Voices Are Mental: When Candance and Perry switch bodies in "Does This Duckbill Make Me Look Fat?" Cadance can still talk in usual voice, despite the fact the only vocalization she should be able to make is Perry's little growl. Perry, meanwhile, remains mute (though this might be selective) and can still make his platypus noise, even though humans have a completely different set of vocal chords.
When Candace speaks from Perry's body it sounds perfectly normal to her mom.
Watching the Sunset: "No you're not!" note To clarify, Isabella commented that she would love to watch the sunset with Phineas, who is too busy trying to rebuild the plane. When he gives up and decides to watch the sunset instead, Isabella denies him, refusing to let him give up.
Wave of Babies: Doofenshmirtz attempted to do this in "The Baljeatles", but he failed before acquiring even one baby.
The end of "Agent Doof", where everybody around Candace gets turned into babies.
Wax On, Wax Off: Monogram tries to convince Carl that washing his car has this benefit, but Carl doesn't buy it.
When Perry is helping Doofenshmirtz get over his evil scientist's block in "Fly on the Wall".
Weaksauce Weakness: Sergei the Snail is invulnerable to regular methods of trapping agents due to its small size and adhesive slime, but, being a snail, can be captured by a ring of salt.
Inverted by Linda, who's what yo might call a weirdness repellent. She is possibly the only person in the world who doesn't know about Phineas and Ferb's inventions and adventures.
We Want Our Jerk Back: Even ridiculously-tolerant Phineas is annoyed by Buford being a total crybaby in "Voyage to the Bottom of Buford".
Wham Episode: On an early minor scale, "Flop Starz" marked the point of decision that every episode would have at least one musical number. It also solidified that all elevator music heard in the series from that point on would be "Gitchee Gitchee Goo". (The previous episode had a scene where the elevator music was "I'm Lindana and I Want To Have Fun".)
The first part of "Where's Perry?" ends with Phineas, Ferb, and their friends falling into a gorge, Jeremy apparently breaking up with Candace, and Perry suddenly vanishing after being hit by several inators at the same time.
Old Coot: New Law! If you find any gold it's mine! Crowd: Yay for finding gold being a metaphor for... uh, I think were supposed to take it literally.
Parodied again in "Brain Drain", in which Dr. Doofenshmirtz at one point gets glued to a turntable and starts an epic freestyle rap about how Perry is controlling his movements using the doctor's own mind control helmet. Of couse, his audience, being a group of teenagers, interpret "there's a platypus controlling me" to mean that there's some kind of authority figure keeping him down.
Teens: We all got a platypus controlling us! Doofenshmirtz: No, just me. I'd stop if I was able. I'm not speaking metaphorically, the platypus controlling me is underneath the table.
What Happened to the Mouse?: Some of the destruction wreaked by the boys' and Doof's inventions is never repaired by the end of the episode. One of Doofenshmirtz's rayguns destroyed a dam, releasing all the water behind it. Conk, the caveman Phineas and Ferb thawed out and remained until the end of the episode, and the "Candroid" from the end of another was never seen again. And the Ferbot in the garbage truck...
Conk has made a number of cameo appearances since, and possibly another brief speaking part.
In "Run, Candace, Run", Candace has three things to do at the same time: She has to read to kids at the library, attend Jeremy's family picnic, and do... something involving being half of a horse with Stacy. She spends the episode running back and forth between the library and Jeremy’s picnic. So did she just completely blow off Stacy?
What the Hell, Hero?: When Perry ate all of Doofenshmirtz's cheese, sending him back onto the path of evil.
Several in The Movie when the boys find out that Perry is a secret agent.
In Where's Perry Part I, Major Monogram gets it from no one other than Doof, regarding his (unpaid) treatment of Carl: "Are you sure you are not evil?".
Doofenshmirtz gives one to Monogram again in "Save Summer" after the latter is fired and goes into a Heroic BSOD, leaving the OWCA without adequate leadership.
When All You Have Is a Hammer: Doofenshmirtz's answer to every problem is to build a gigantic, gun-like -inator whose only function is to remedy that problem. And even that solution is usually not the reasonable one.
When the Clock Strikes Twelve: Candace signed an agreement not to try to bust her brothers more than once per day. Her mother considered adding a new clause when Candace took advantage of the fact Midnight marks the beginning of a new day.
In the New Years episode, Candace relapses and realizes she can try to bust Phineas and Ferb until Midnight, when the New Year officially begins.
When Things Spin, Science Happens: The TV Tropes entry is referenced in "Primal Perry" when Baljeet is inside a machine built by our heroes to test something or other. When the machine starts spinning Buford asks "Is science happening yet"?note Why, yes. Yes it is.
Within driving distance of Mount Rushmore, referenced on maps to be simultaneously near San Franscisco and somewhere on the east coast, and a supersonic paper airplane's flight away from New York. Yes, that totally narrows it down.
"Just Desserts" may have finally narrowed it down with the song line of 'There's Escanaba, I can see Montreal'. For those who aren't good with geography, that means their house (and the overall Tri-State Area) are somewhere in the Upper Peninsula of Michigan, US.
Who Names Their Kid "Dude"?: Ferb actually is short (or a nickname) for something. For what, we don't know yet, as he was interrupted before he could tell us.
Who Writes This Crap?!: "Phineas And Ferb's Cliptastic Countdown": Major Monogram asks who is writing their lines. Carl responds "Agent M, sir". Cue a monkey with a fedora on a typerwriter. Dr. Doofenshmirtz then rants about how none of the kids watching the show are going to know what a typewriter is.
He also gets this in the Show Within a Show subplot of "Nerds of a Feather"—specifically, he's been accused of the assassination of Abraham Lincoln.
Wrong Genre Savvy: The DVD character commentary for "The Chronicles of Meap" shows that Doof is Genre Savvy and Monogram is Genre Blind when it comes to their "cartoon universe". (Doof thinks it's ridiculous that Monogram doesn't know what a thought balloon is, for example.) However, Monogram is a little more savvy when it comes to tropes in general, as he ends up predicting the outcome of an obvious case of This Is No Time for Knitting, when Doof thinks Candace has picked a really bad time to be playing baseball.
Yank the Dog's Chain: In "Chez Platypus", Doofenshmirtz's girlfriend ultimately gets zapped by the anti-love laser. Especially cruel in that this happens at the very end of the episode, right after the Crowning Love Song Of Awesome.
Irving gets one in "Not Phineas and Ferb". He manages to trick his haughty older brother into believing Baljeet and Buford are Phineas and Ferb despite Paper Thin Disguises. When he tries to prove it, though, he's foiled by the fact that the holographic Eiffel Tower they had been using as a fake project has since been replaced by the real Eiffel Tower, making Irving look like the stupid one. Then his brother gives him a wedgie and drags him home.
And Candace, of course, gets one pretty much any time it seems like she'll bust her brothers. And, to a lesser extent, Vanessa busting her father.
Candace gets a particularly bad one in "Invasion Of The Ferb-Snatchers": Phineas and Ferb are fixing an alien's spacecraft and open an ostentatious launch platform in the backyard. Candace sees this and gets her mother, who even mentions that she can see it...but she's actually a Mobile-Suit Human for the tiny alien.
Worst one for Candace yet: in "A Real Boy", Candace SUCCEEDS... then Linda gets zapped by Doof's "Forget-inator" while the boys' device is in the air, then when the boys land, Linda sees again, then is zapped while they're out of sight again ...this repeats a few more times until Candace's post-hypnotic suggestion to forget about busting her brothers kicks in again leaving Linda to wander off right after a final zapping.
"Candace Gets Busted", where she's the one who gets busted. Doof's inator temporarily removes all evidence of the (unintentional) party that'd occurred, only to return it just moments afterward.
It even happened to a one-shot character: Professor Ross Efrop in "My Fair Goalie". He came up with the idea of Football X-7, but he was forced into hiding because Britain's anti-palindrome atmosphere at the time, with his name being discovered to be a palindrome. He nearly comes out of hiding when his creation was realized, but was forced back when he found out people still rallied against palindromes.
Anytime when it looks like Isabella is going to a romantic moment with just Phineas, something happens to ruin that moment. Notable examples include Summer Belongs to You and Canderemy.
She finally gets a moment in "Happy Birthday Isabella".
In "Love at First Byte", Norm becomes attracted to a Fembot and even manages to impress her. However, it's later revealed that said fembot belongs to Rodney, and the dislike between him and Doof promptly turns the budding romance into a Star-Crossed Lovers situation.
Sometimes Stacy is grounded off-screeen to explain why she's absent.
You Are the New Trend: In Run Away Runway, Phineas and Ferb become designers, with their Summer All The Time collection. The collection consists of the clothes that Phineas and Ferb wear in almost every episode - so Phineas and Ferb are the newest fashion. Later on, when Doofenshmirtz creates his clone army, as they enter the Googolplex Mall, everyone thinks that the outfit he's wearing has become the newest fashion - so Doofenshmirtz becomes the newest fashion.
Zerg Rush: Baljeet and his copies in "Primal Perry" intend to do this to Buford, but the machine that allows the copies to exist is destroyed before Buford is seriously hurt.
Zettai Ryouiki: Stacy. Depending on the episode its either Grade B or C. Candace and the Fireside Girls all sport the vastly inferior Grade E although Isabella's is a Grade D, perhaps as a sign of her leadership.