All Men Are Perverts: The acne-cream commercial director knew Anthony did a "pizza facial" because he was secretly videotaping him from outside. Made even worse by the happy noises Anthony made while rubbing pizza on his face.
Also with "Parents Suck", when Anthony boasts that he can say "fuck", "shit", and "darn" every day.
"My Bobblehead is Evil:" The bobblehead's reasons for killing Ian include being stupid, stealing Anthony's Gogurts, and singing crappy songs in the shower.
Ascended Meme: In Xtreme Sleepover!, While the two boys are trying to sleep, Anthony is lying flat on the ground facedown while Ian has his butt up in the air, leading to people saying Ian was Planking wrong. In The Pokemon Master!, Ian does the same thing, claiming to be "Snailing," which is way cooler than Planking.
Bigfoot, Sasquatch and Yeti: Ian and Anthony go on a Bigfoot hunt and have to compete with Dane Shawson (played by Shane Dawson) for the prize. Shane says he made up the recent Bigfoot sightings, but Bigfoot really appears and attacks him.
Brick Joke: During Evil Fortune Cookie, Anthony's middle name (Danger).
Revisited much, much later in WORST ID PHOTO EVER!
In "A Smoshy Christmas," the viewer cannot fail to see Anthony's underwear-clad ass as he is about to start telling Ian the "story." Ian then points out towards the end that Anthony forgot to fasten his butt-flap. Part 2 ends with the underwear vanishing completely.
Electrocution by toaster in "My Bobblehead is Evil!"
Butt Monkey: Ian gets treated much worse than Anthony. Boxman also qualifies.
Call Back: Best Toy Ever recreates the scene from Dolls where Ian discovers Anthony's little secret...
The throwaway line in "Stuck In A Toilet!" where Anthony complains about hating it when people record vertically. A few months later, in "iPhone 5 Revealed," the clueless dad tries to record his son's birthday party vertically, but the new iPhone catches fire and burns his hand.
The Running Gag of Anthony being increasingly less clothed in "Paranormal Easy Bake Oven" also returns in "iPhone 5 Revealed." It only progresses to the point where he's down to his undershirt (the pants stay on this time.)
Celebrity Endorsement: Not exactly.Ian has to mention Shaun White's new snowboarding video game twice so that he can pay for his mother's beard transplant in Shaun White Pays For Woman's Beard Transplant.
Department of Redundancy Department: A deleted scene from Ian Gets Lucky lists reasons why Anthony and Ian shouldn't be getting allowances. They have big noses. In case you missed it the first time it was mentioned, it shows up in a bigger size down the list. It's even lampshaded!
Dumb Blonde: Rachel, the hottie from "That's Hot!" Ten years later, she looks 34 and is still in high school.
Emo: Anthony's hairstyle is very obviously this. Apparently, he used to have an afro (and a wardrobe that would make Screech Powers cringe), but it got burned off and the emo hair was a transplant.
Emo Teen: Being one is the only way to survive High School, according to what the Internet says in Four Years Foreplay. Hilarity Ensues when Ian's character shows up to school in dark clothing, guyliner, straightened hair, and (fake) facial piercings.
Engrish: The birthday cake Ian got for Anthony (on his own birthday!) is written with this, because he bought it in Chinatown.
Metrosexual Hipster flips the bird twice in "Pokemon in Real Life 3"
Foreshadowing: In Food Battle 2011, Ian darkly chuckles after Anthony suggests a duel with their two foods acting as guns. It seems slightly out of character and inappropriate for the moment, until we learn what he prepared for the duel....
Freeze Frame Bonus: In "My Stupid Dying Grandpa," as Ian is forced to kiss the face of Aunt Jemima to get rid of his fear, increasingly demonic-looking split-second shots of Aunt Jemima's face flash on screen.
Gender Bender: In "Smosh Snatchers", two black girls who are envious of the duo's success decide to undergo plastic surgery to become and then kill them. It doesn't succeed when the Ian impostor mentions the duo's like of Spice Girls, which was apparently supposed to be kept secret between both of them. Also invoked in one video when Ian e mentions how much he would just grope himself if he were a girl.
Generation Xerox: Anthony disguises as his grandma in "Biggest Zit Ever," and the commercial director remarks on how much "she" looks like Anthony before hitting on her, forcing Anthony to abandon the disguise.
Getting Crap Past the Radar: In-universe; the music video Meat In Your Mouth consists entirely of this trope being invoked and exaggerated.
Green-Eyed Monster: Whenever Anthony has any form of success, Ian becomes extremely jealous and resorts to name-calling and screaming rants. Ex: Male Model, A Hairy Situation w/ Billy Mays, Anthony Poses for Playgirl?! and The Famous Cheese Guy.
Don't forget his jealousy-fueled rage in Food Battle 2008 due to Anthony winning the 2007 one.
Groin Attack: Woe be onto you if you happen to be Anthony's genitals, which to date, has been kicked, turned into gold, slammed between a car door and sliced off by adamantium claws!
Ian gets this too sometimes, as alluded to in "That's Hot!" when his mom reminds him of the time he put his you-know-what in the microwave...
And on Ian's bucket list, he wants to "kick each member of One Direction in the taint."
The ending of Boxman 2.0.
Haunted House: Ian and Anthony learn that Anthony's house is haunted when they hear strange noises in the house. They soon learn the ghost is friendly, but there may be an unfriendly ghost when they heard a noise that wasn't the friendly ghost's doing.
High School: Smosh and I Set My Friends On Fire sing about being a Freshman in Four Years Foreplay.
Their "True Story" cartoons and "That's Hot!" all depict events that are said to have happened to the guys in high school.
Hollywood California: The California Stereotype Experiment. "Ian is deadset on proving wrong the stereotype that everyone in California surfs or lives next to a movie star. Unfortunately for him and Anthony the stereotype... may be true."
Homosexual Reproduction: In Food Battle 2009, as a challenge, Anthony wears his burrito as a wig. It's so convincing that Teleporting Fat Guy believes he is a girl he knows and proposes to "her" on the spot, followed by pictures of their wedding, their honeymoon, and one of them with their 3 kids before accidentally knocking his wig off.
Idiot Hero: Anthony and Ian are shown as morons when they play themselves in their videos. Sometimes, however, one will be smarter than the other.
In later seasons, Anthony is usually in the smarter of the two.
Incredibly Lame Pun: At the end of "My Pet Pikachu," Pikachu turns out to be a bum who stole Anthony's costume, so he shanks the guys and leaves. Anthony yells, "Shanks for that!" Then the subtitle reads, "RIP Anthony and Ian: Dead By Horrible Puns."
A Man Is Not a Virgin: Ian gets a cardboard cutout of Hatsune Miku, and starts... you know... so he can check it off his bucket list. Even worse, when Anthony fetches it for him, it's implied he's not the first guy to have done this to that particular cutout.
Megaton Punch: In a video exclusive to Smosh.com, Anthony (playing Edward from the Twilight series) buys blood from a dealer in a way similar to a drug deal. When he realizes it's fake blood, he Falcon Punches the dealer.
Mind Screw: The ending of Food Battle 2012. While Anthony is unconscious, Ian secretly switches their brains, but it backfires on him as he replaced Anthony's heart with a pink frosted sprinkled donut. So Anthony wins, while he's in Ian's body...And no, it does NOT make sense in context.
Moral Dissonance: In the video "Toy Airplane." Anthony & Ian use a toy airplane that accidentally takes pictures of a murder. Then they spend the rest of the time trying to get the airplane back while doing NOTHING to bring the killer to justice.
Mundane Made Awesome: The video officially introducing Smosh Games to the world has Anthony complaining about the generic-ness of their new channel name, but Ian thinks that same generic-ness makes it awesome.
My Sister Is Off Limits: In one video, Anthony's sister (played by Anthony) starts dating Ian, and Anthony's not too happy about that.
Only Sane Man: Ian and Anthony could play tennis with this role, though Anthony tends to be this most of the time, especially at the end of the " If ___ was Real" videos.
Subverted in HITCHHIKING DISASTER!. Ian has to put up with Anthony having a funeral for his pet rock, locking the car, and leaving his keys, and throwing his only pair of car keys at a bear. Turns out, Ian left his door open.
Papa Bear: The little girl's dad in "My Stupid Dying Grandpa." When Ian steals her cookie, he starts whaling on him like nobody's business, complete with Spaghetti Western background music.
Parody Name: Look closely at the screen on the iPhone in "My Mail Order Bride" and "iPhone 5 Revealed." You can see, in the upper left corner, "GAYT&T." Possibly a Take That.
Perma Stubble: Ian can always be recognized by this. In Food Battle 2012, when he tries to use his donut as a fake ID, the store clerk doesn't bother checking it, because of this trope - he just lets Ian buy the beer anyway. (Conversely, the significantly-less-stubbular Anthony can't fake his way through the same way with just an egg roll.)
Ian: I've been digging this hole for two weeks straight, for no reason whatsoever?! [...] You know what? I'm going to continue to dig this hole, and when I'm done, I'm turning it into a bomb shelter! And when the commies nuke us, guess who's not invited? YOU! And Jon Gosselin! * Digs*
Running Gag: In their Food Battle videos, they always both fail the very first challenge.
Also in their Food Battle videos, an announcer shows up at the end to tell the winner they just won and ask them what they're going to do now. When they reply, he'll ask if he can come, and they will often answer with an angry Big "NO!"note though Anthony said "HELL YEAH" instead one time.
Throughout the blooper reel of the Zelda rap, the sword sheath keeps falling off on the first take of a scene.
Anthony and Ian die in most Mailtime with Smosh.
Cletus screaming in terror at the end of the Neighbour videos.
Stuff Blowing Up: "Holy Crap, 2 Billion Views!" has one that dominates almost the entire second half of the vid - the preparation for, and finally the actual act of, blowing up a commemorative cake baked by Duff Goldman - in glorious slow motion.
Tag Team Suicide: When Batman and Robin attempt to make a video and become YouTube stars, they demonstrate things you could do as a hero. In one part of the video, Batman tries to give an injection to a rabid dog, but apparently winds up killing himself with the needle. Robin sees this, and injects himself with the shot, saying "I'll be with you soon, my love." However, Batman was just pretending to die, and when he realizes Robin is really dead, he doesn't care. He's just happy he'll be an Internet celebrity!
Tempting Fate: Anthony just got to star in an acne-cream commercial (being specifically ordered to keep his skin clear too), and what is the first thing he does? PIZZA FACIAL!!!
Ultimately double-subverted. Anthony is fired not for getting a zit, but because the director wanted to ask him out when he was disguised as his grandma, and he got mad at him for "cockblocking" him. And don't forget, the director has already been all but confirmed to be hot for Anthony.
In 2 Guys 1 Bathroom, Ian thinks "If he sees me going to the stall, he's going to think I'm insecure and have a small tallywhacker. Wait... why'd I just call it a tallywhacker?" Then later in the video, as someone is waiting on Ian or Anthony to get done using the urinal, he exclaims: "Fine! I'll just use the stall! And I don't have a small tallywhacker!"
Also..."I'm draining my sausage!" from Anthony. (Ian says almost the same thing, substituting Five-Dollar Footlong.)
Vitriolic Best Buds: If Anthony and Ian are portraying themselves, they're often an exaggerated Type 2; despite being best friends, they don't seem to give a damn about anything that happens to each other, even if the other one is outright killed. In fact, 90% of the time one of them dies, the other one is directly responsible for it.