* "The Dress" seemed to fling everything it could past the radar:
** Gumball having an ImagineSpot that the two of them are married... and he's surrounded by cat/fish babies while Darwin comes home and yells, "[[MisterSeahorse I WANT MORE KIDS!]]" What [[CrossesTheLineTwice really crosses the line]] with that scene is not only are they both male, and both children, but they're also both ''siblings through adoption''.
* Some episodes show Gumball naked, but with pixelation on his cereal-covered nothing.
** Not to notice Miss Simian's saggy boobs and visible pelvis bone.
* The plot for "The Third" seemed like it was talking about ménage à trois and, later, infidelity.
-->'''Darwin:''' Three best friends? Won't that be a bit... weird?\\
'''Gumball:''' It's only weird if we make it weird. Do you find it weird?\\
'''Darwin:''' Not if you don't.
* Channel/Episode descriptions might not be directly tied to the studio that made the show, but one of the ''official'' episode descriptions for "The Ghost" didn't sound like it belonged to a kid's show.
--> "The Ghost": Carrie the Ghost often uses Gumball's body but now he has to learn how to say "no" to her, which may prove to be an extremely difficult thing to do considering Carrie normally uses his body against his will anyway.
** In addition, the binge-eating scenes parody the similarly-shot music video for Music/TheProdigy's "[[http://www.youtube.com/watch?v=Tf1KaRjOg9g Smack My Bitch Up]]" ([=NSFW=]) whose protagonist indulges in copious drug use, drinking, and sex.
* "The End":
** At the beginning of the episode, Gumball and Darwin both sit on their couch lifelessly flicking through TV channels and eating junk food — with the appearance of being stoned throughout the entire scene. A sample conversation:
-->'''Darwin:''' Can you think of any better way to spend our lives?\\
'''Gumball:''' Dude...I can't even think. Is my heart still beating?\\
''(Darwin feels for a pulse. Six seconds pass before Gumball's heart starts beating again.)''
* "The Pressure":
** The part where the girls are (falsely) bragging about who got the older boyfriend, the entire segment counts, but the gold is when Carrie says "mine is so old that he doesn`t have teeth."
** Another example:
---> '''Gumball:''' ''(while doing high dive to save Darwin from a girlfriend)'' On one hand, I create a diversion and save Darwin. On the other hand, I splash Penny and look like- [[CurseCutShort *SMACK*]]
** At the end of the episode, Gumball and Darwin [[HoYay once again kiss each other (by accident this time), and leave with a post-kiss-afterglow]].
*** This is made worse by Banana Joe yelling [[AmbiguouslyGay "Pals before gals!" afterwards]].
* In "The Party", Gumball is searching for a date to the party, his observation of Teri (a bear made of paper) has a strange double meaning.
--> '''Gumball:''' She's a little flat.
** While the party is being busted wide open, Alan ''motorboated'' two balloons.
** Also, in the end where Rachel's parents arrive we see Principal Brown and Ms. Simian in a ''closet''. They were visibly surprised.
* In "The Genius", Gumball tries conversing with a couple of nerds. When he fails, one of the nerds calls him a "gluteus maximus", which we should all know what it really refers to.
* In "The Mustache", Gumball, Darwin, and Anais accidentally take their Dad's 'supplements' that he was going to use to impress his wife (and make his man-boobs stick up). [[http://www.cartoonnetwork.com/tv_shows/gumball/video/?episodeID=8a250ab033a26e480133cbaa94270174 Really]].
** [[http://www.youtube.com/watch?v=YhWWZ7Fb9nk Also:]]
---> '''Gumball:''' Man, What a pile of beans.
---> '''Darwin:''' Dude, watch your language, you'll get us in trouble.
---> '''Gumball:''' Well I'm sorry Darwin but it is. It's a big, steaming, pile of beans.
** The way Gumball's tail was [[FreudWasRight hulking out]].
* In "The Poltergeist", where Mr. Robinson explains to Gumball and Darwin how he and his wife would argue, sometimes six times a day, sometimes in public, even once in their sleep! Anyone who is or was married (or in a similar long-term committed relationship) will recognize what he is really talking about.
* A scene in "The Fight" has Gumball running through the girls shower room.
** Another right after that has Gumball running across the bottom of the pool, past a one-eyed octopus wearing a diving mask and snorkel. When Tina swims past it right after, it ejects yellow 'ink' into the water.
* The "baby sitter" Richard almost hired in "The Responsible" is named [[http://images.wikia.com/theamazingworldofgumball/images/5/50/AlbertThePervert.jpg Albert the Pervert]] in the concept art. Some concept art shows him as a '''pair of underwear''', with an unsavory grin. In short, it's ''really'' disturbing that he wanted to sit on Anais.
** In that same episode, Darwin [[HoYay kisses Gumball while they were drowning]]. Granted, it was to give him air, but he does it even though Gumball was clearly not okay with it.
* In "The Fridge," Nicole and her family go to a paintball arena for a family outing. Outside of the arena, there's [[http://images1.wikia.nocookie.net/theamazingworldofgumball/images/thumb/8/8f/ElmorePaintball.png/1000px-ElmorePaintball.png a sign]] that lists the types of events they can cover, two of which are ''adult parties'' and ''[[StagParty stag parties]]''!
* From "The Flower"
--> '''Gumball:''' Wait, did you just say he was your cousin?
--> '''Penny:''' Well duh, everyone knows.
--> '''Gumball:''' Well duh, I didn't.
--> '''Leslie:''' [[AmbiguouslyGay There's a lot of things you don't know about me Gumball.]]
--> '''Gumball:''' Oh...
* "The Banana" presents us with two such instances:
** Mr. Small's "herbal tea" gives him some... [[GRatedDrug adverse effects]]; most notably towards the end of the episode, where after taking a sip [[http://images.wikia.com/theamazingworldofgumball/images/6/6b/AHerbalInfusion.png his eyes begin to get weird and his face gets all loose.]]
** When Darwin is raiding Joe's locker, he pulls out ''a jockstrap'' and tells Gumball to chew on it. You just '''''know''''' that the writers knew exactly what they were doing since neither of them address what it actually is.
* Anytime Banana Joe takes off his peel. [[https://www.youtube.com/watch?v=tJz4nW0pYUc It was even in a promo.]]
* "The Job" has a scene where Gumball and Darwin are delivering a pizza to a couple of pizza-headed people, which they apparently consider to be their new child. As the father is paying Gumball, he accidentally drops the box while reaching for the money he gives them, [[http://images3.wikia.nocookie.net/__cb20120919162343/theamazingworldofgumball/images/e/ee/Job10.png which completely horrifies the couple]]. Yes people, a children's cartoon just got away with [[BlackComedy Dead Baby Comedy]].
** Even worse, Darwin slips on the dead pizza baby as they run away, further smearing its tomato sauce, or as the pizza couple see it; '''blood''', on the concrete.
* In "The Bumpkin", when a bee appears Gumball hides himself from it ''in Nicole's skirt''.
** During the party montage, Gumball funnels Idaho with a [[FrothyMugsOfWater soda bong]].
* In "The Storm", Gumball has to "inflate" Alan the balloon in the school bathroom. Just before he does it the scene skips to them then leaving the bathroom with a disgusted look on his face while Alan has an ''incredibly'' happy look on his. It should be noted the orifice that Gumball inflated Alan with, the only one his body has, he also uses to breath, eat, and excrete.
** Just before the scene change, Alan's knot deflates slightly, cause it to moving upward [[SomethingElseAlsoRises in a rather questionable manner.]]
** In British airings of the same episode, Gumball describes Carmen as a "bimbo" (in the US, he says the word "coward" instead)
* In "The Lesson" a bear literally pops a cupcake's cherry. Prompting this dialog.
--> '''Gumball:''' Did you see what that bear did to that guy's cherry?
** Also the rather...suggestive calender that Principal Brown planned on giving Miss Simian.
* In "The Voice", Gumball takes Tobias's towel and spanks him with it in the middle of the school corridor.
* In "The Castle", Gumball, Darwin and Anais [[TotemPoleTrench disguise themselves as a pizza delivery man]] to get back into their house full of party animals. Being at the bottom of the disguise, the way Anais hands over the receipt probably couldn't be any more wrong.
--> '''Hot Dog Guy:''' "Uh... you can keep it."
* In "The Internet", Gumball tries to enter the Internet by scanning himself without his clothes on. It doesn't work, but it does give Darwin a nice close up photo of Gumball's privates. Afterwards, Darwin [[BrainBleach tries to wash his eyes out]].