Dexter: If you need me, I will be in the science lab!
Coach: What's this crap?
Coach: What's this crap?
— From "Dexter Dodgeball"
- Lisa the babysitter's phone conversation with her boyfriend in "Babysitter Blues". We don't hear the other end of the conversation, but based on her responses ("She didn't!" "She DID!?" "But they're not in love like we are."), it is evident that her boyfriend is telling her about one of their schoolmates having sex, or possibly being pregnant.
- The entirety of "Topped Off" satirises drug addiction. In the episode, Dexter and Dee Dee become addicted to coffee and consequently use up the contents of an entire coffee jug. When Mom and Dad find this out, they break down in tears of painful misery, resembling the negative effects of withdrawal from drugs.
- "Decode of Honor":
- The kids get cereal-box decoder rings, and Dee Dee says, "Your club is for big IDKSC!" After decoding the word, Dexter quips "Hey, I'm gonna tell Mom!"
- As Dee Dee attempts to complete a task on her list - get a tattoo - she sits down in the tattoo parlor beside a wall of potential tattoo designs, one of which is A HAND FLIPPING THE BIRD◊. Later airing and HuluPlus censor this by zooming the shot in to the bottom left far enough to move the design off-camera.
- And then there's that whip scene in the movie Ego Trip. Seriously how the hell did they manage to slip that past the censors?
- Also from the film, we have a scene where we see Mom and Dad's various limbs up in the air, while they're grunting and saying that "it's not going to fit". Then the camera zooms out. They're playing Twister.
- Dexter accidentally invented glasses that can see through clothes in the episode "A Failed Lab Experiment".
- To elaborate, a young boy, even if he is a genius, saw the private parts of an obese mailman, an elderly woman, his dad, his mom, and his older sister. Even if we don't see anything from Dexter's perspective, it's still surprising that they got away with it.
- The banned episode of Dial M for Monkey "Barbequor" features an villain called "The Silver Spooner", who is very obviously a gay stereotype, as well as Krunk getting intoxicated and Monkey having to drive him home. The episode was pulled after the first season's original run and was since replaced with "Dexter's Lab: A Story". The episode isn't available on DVD or iTunes, either.
- It's in the Netflix listing of season 1, so the episode is no longer banned apparently.
- This is a mistake on Netflix's part. The original pilot short is where Barbequor is listed.
- It almost crosses the line into Unambiguously Gay when The Silver Spooner excitedly asks "Judy Garland? Where?" with stars in his eyes. For those who don't know, Judy Garland is an icon of gay culture and being a fan of her is usually associated with gay stereotype.
- Also in the same episode, a panning shot of all the characters eating shows Agent Honeydew slowly about to insert a hot dog into her mouth, and the blond guy next to her slyly stares at her as she pulls it towards her mouth.
- Nevermind everything about Monkey and Agent Honeydew's relationship.
- It's in the Netflix listing of season 1, so the episode is no longer banned apparently.
- Dexter's gym teacher saying "What's this crap" in "Dexter Dodgeball" stirred up a little controversy which caused the dialogue to be muted in reruns. Now, it's unedited since CN now allows "crap" in their shows.
- The monster in "Last But Not Beast", Badaxtra.
- There's also the short in the older cartoons where Dexter goes through the mail until he finds a package for him, excitedly declaring "It's here!" He then rushes through the house, to his lab, then to a mini-submarine that goes who knows how many miles underwater. He then checks to see if he's totally alone, and only then does he open the package and take out a magazine, which he turns sideways to let the pages fall. His eyes get wide and he says, "Ohhhh, sweet mama...." While we hear him whistle, we see that he's looking at a wrench taking up the entire three pages, centerfold-style.
- Almost all of the episode "Momdark", which had Mandark capture Mom and impersonate her in an attempt to take down Dexter unnoticed. Holy Christ.
- The original comic book from which said episode is adapted is even worse.
- The "mandatory suiting up scene" (to quote Mandark) should've been enough to bring the censors a-running all by itself. Then again, considering how often they got away with showing Dexter stark naked...
- And what about that hands-on approach to Mom's feature?
- There's a scene where Dad asks Mandark (thinking he's Mom) to "come to bed", all with a suggestive look and a smile. When he uses a lame excuse to escape, Dad says that she "always says the same kind of things", implying their sex life is pretty much dead.
- The smugglers from "Beard to be Feared" are definitely smuggling flour and not something else that's white and powdery. (link)
- "I assure you it is 100% pure." Uhhhh...
- In "Dee Dee and the Man", Dexter has gotten rid of Dee Dee but finds himself desiring company in the lab, so he actually interviews various girls to fill the role of the new "spastic sister". His eventual (instant) choice: a woman at least 10-20 years older than him of supermodel quality. While none of their interactions in the lab suggest anything squick-y, the way Dexter utters nothing but an entranced "When can you start?!" upon viewing the woman is a bit more adult than one would expect.
- What about the sequence where he teaches her how to mimick Dee Dee's "Ooh, what does THIS button do?"? She bends down, rubbing the top of Dexter's head, saying suggestively, "Oh, what does THIS button do?" Dexter then excuses his self, walks off camera, we hear a splash, and he returns dripping wet.
- And her reaction to Dexter asking to see her dance: "Okay, but it's fifty bucks extra!" For those who don't get the implications, they just all but said she used to be a stripper. Or possibly even something less dignified than that.
- In the episode "Nuclear Confusion" Dexter has to follow the clues for Dee Dee's treasure hunt because the object he must find is an experimental power source that will cause a meltdown if not contained in time. The next clue at the home of Dexter's "touchy-feely neighbor lady", who sports some very noticeable Hartman Hips. The neighbor offers him cookies, but drops one and bends to pick it up, showing the next clue is painted on the seat of her pants. Oh, and what does the clue say? Dad's Trophy.
- "Sister Mom", the episode where Dexter transformed Dee Dee so that she looked like their mother, at one point gets the attention of Dad, who tries to make a pass at her, unaware that she's really his daughter. She refuses him with "Ew, I don't want to kiss YOU", and it's implied their parents' sex life is dead. ("So what else is new?")
- In "Star Spangled Sidekicks", Dee-Dee boasts "I've got style, pizzazz, and I can kick some... well, you know."
- In "Got Your Goat", the Spanish newspaper Dee Dee shows to Dexter says, "Just like Satan said," and "You are the drunk ones."
- In one episode Dexter and Mandark face off at each other in their giant robots, ready to destroy each other. They open fire with missiles from their crotches.
- In "Framed", Dexter and a nerdy friend of his, Douglas E. Mordecai III are listening to a scientific program on tape while on the school bus. Dee Dee, who's sitting behind them, unplugs their headphones from the tape player, so that the entire bus can hear the title of the next chapter: "Reproduction". Dee Dee gasps in shock, then makes fun of them for listening to it. One kid on the bus even says "Yeah, well, that's the only way they'll ever learn about it."
- At the end of the episode, they move on to the next chapter — "Photosynthesis."
- In "Dexter Detention", a teacher openly fawns over Dexter.
- In "Snowdown", Dexter tries to escape from the fight, referring to various areas of the field as bases. He takes cover behind a kissing couple and says to himself, "First base." to which the man replies, "You said it, brother!" Considering what metaphors the next three bases represent...
- Dad says this at the end of "Filet of Soul": How many times have I told you? Early morning is Daddy's special bathroom privacy time!
- In "Chubby Cheese," Dexter tries winning a prize by playing a Wack-A-Mole parody called "Wack the Weasel."
- "Hamhocks and Armlocks" was an early episode that got a bit past the radar. For example, the waitress at the diner the family stops at is visibly smoking whenever she appears. Not a pipe or anything either, but an actual cigarette. Later, when Dexter is making a robotic arm for his dad, he has a choice of 2 decals to put on it: One that says "Back off!" and one with a metallic naked woman silhouette. He goes with the naked lady.
- "Ewww! That's Growth" has Dexter and his family get in line to ride a roller coaster. As the camera pans across the long line, a man is clearly staring down at the (rather large) breasts of the woman standing behind him.
- The ending to the Justice Friends segment "Uncle Sam" implies that the titular character is on prescribed pot.
- In the episode "The Old Switcharooms", Dexter and Dee Dee are forced to switch rooms. Naturally, Dexter is extremely worried about Dee Dee trashing his lab. After an unsuccessful attempt to go through the hallway, he panics and 'suits up' to go through the air vent. This entails tearing apart a stuffed bear to wear its stuffing, thrashing about the room, putting on a lamp shade, and tearing the elastic out of his sister's panties.
- In "Voice Over", one of the various voices sounds very seductive. When the computer starts talking about the rising heat in that voice, she says "74 degrees and rising." Dexter promptly goes to the bathroom, we hear a splash, and he walks out soaked.
- In "Bygone Errors" there's a scene set inside what appears to be an alien strip club.
- The infamous banned episode "Rude Removal" just barely got past the radar through all the swearing and was never aired. The title card also features Dee Dee Flipping the Bird.
- The titular robot from "That Crazy Robot" shoots lazers through what looks like a male human's nipples◊.
- In "The Blonde Leading the Blonde", Dexter is seen doing aerobics. His rear is...ehrm...well defined, and in some frames, you can see half of his buttcheeks.
- Coolio's rap song "What's His Name? (Dexter)" from the official soundtrack album Dexter's Laboratory: The Hip-Hop Experiment contains the word "anti-narcotics."
- In "That Magic Moment," Dexter can be heard mumbling "stupid Irish..." while expressing his skepticism of his Magic Uncle Fergle O'Reilly's magic tricks.
- The gnomes in "Shoo, Shoe Gnomes" are more than a little obsessed with Dee Dee's feet, to the point where she and Dexter use them to distract the gnomes with what is essentially a peep show.
Gnome: I hear this show's got some saucy bits...
- The entire episode "The Muffin King" is basically one huge Double Entendre. It's easy to think that the creators didn't know the implications of having Dexter's father be obsessed with muffins until you hear the episode's dialogue. Dexter's Mother calls her husband a "Muffomaniac" He himself says "Those muffins are the reason I married your mother" Muffin is a slang term for a woman's vagina and it's pretty much a given that "Muffomaniac" is a pun on the term "Nymphomaniac" with describes someone who is addicted to sex. Add in the fact Dexter's dad gets an insanely creepy look and spends much of his time sitting on the bed in his darkened bedroom as well as having a fantasy about muffins while doing so and you pretty much have to come to the conclusion that CN's censors are virtually nonexistent. It's also worth noting that these scenes have little to no music. He's just slinking around his bedroom or sitting still on the bed with an unnerving smile.
- In "Sports A Poppin'," Dad, trying to teach Dexter how to play sports, has him watch Dee Dee's example of throwing a baseball. She then throws the baseball so hard that it sends Dad flying offscreen with him saying "That's the ol' pepper Dee Dee!" in a higher pitch, implying where exactly the ball hit him.
- In the episode "Mom and Jerry", the mouse with Dexter's brain at one point pops out of Mom's blouse. Mom's violated expression is what sells it.
- The commercial for Puppet Pal Jeans seen in the episode "Labels" features some Male Gaze shots of the female models wearing the jeans and has Puppet Pal Clem and Puppet Pal Mitch tell each other that they look hot and sexy in their jeans.
- In the episode "Project Dee Dee", Dexter at one point tries to convince his sister to let him help with her science project by having a robot duplicate of his mother encourage her to do so. The robotic double of Mom reacts in shock to something and the scene pans out to reveal that Dad pinched her butt offscreen.
- In "Dexter's Lab: A Story", one scene strongly implies that the talking dog is either humping Mom's, Dad's, and Dee Dee's legs under the table or sticking his nose somewhere it doesn't belong.
Dad: So, Dexter, where's your little buddy? Oh! Well, hello down there!Dog: It's the man from before!Mom: Oh!Dog: This one's a lady!Mom: He certainly is friendly.Dee Dee: Oh! A little too friendly if you ask me.Dog: It's the stick!
- That episode also features the show's only other instance of (mild) profanity when Dexter yells at Dee Dee to "stay out of [his] freakin' lab."
- When the family go over photos from their Hawaiian vacation in "If Memory Serves", it is implied that Dad cheated on Mom with a Hawaiian woman.
- In "A Mom and Dad Cartoon", Dexter and Dee Dee's parents are having a friendly quarrel over a game of Scrabble, but to Dexter and Dee Dee (who are standing on the other side of the door) it sounds like they're accusing each other of infidelity.
Dad: Well how about the last time I caught you cheating? How easily you seem to forget who dealt the cards then.Mom: That was different. I told you that the Jack of Spades was wild.Dexter: Who is Jack?Dee Dee: Whoever he is, he must be more exciting than Dad.
- In the same episode, Mom reaches into his pocket and pulls out a Scrabble tile. The outline on his pocket looks like a condom.
- The Swedish dub of this episode almost makes the joke even dirtier. The Swedish name for the Jack cards is "Knekt", which is an old word for "soldier". Thus, the joke is changed slightly and Dee Dee's line becomes that she thinks Mom had an affair with a soldier.
- "Stuffed Animal House"
- Dexter attempts to pass an animated stuffed rabbit as a hand puppet by shoving his hand up the doll's ass.
- The stuffed beaver ends up used by Dad to scrub himself while showering and runs back to Dexter's lab with a traumatized look on his face, implying that Dad used him to scrub his genitals.
- In "Father Knows Least", it is implied that Mom has cheated on Dad with a delivery man, a milkman, and a mailman.
- "Jeepers Creepers, Where is Peepers?" shows baby Dee Dee's first idea, leading to her whole imagination being conceived — literally, via an egg and several sperm.
- In "Height Unseen", Dexter's first method of trying to grow taller is to put himself on the sort of torture rack that is intended for ripping people in half in an attempt to forcibly stretch his body out.
Dexter: Oh yeah, that's the rough stuff!