"People-Please wear your socks on the gym floor."/"Please go pee-pee on your socks for warmth." ExplanationThis scene from Book 5 has often been altered to have the changed sign say something different.
"Please wash your hands in the toilet." ExplanationThe changed sign in the bathroom from Book 6 which Melvin obeys. Melvin's reaction to this sign was also used as the picture in the "Holy shit, Dav. What a fucking savage." 4Chan post mentioned below.
Captain Underpants and the Perilous Plot of Professor Poopypants. ExplanationPeople on Twitter recommend this book to people when others ask for book recommendations.
Professor Poopypants' Name Change- O-Chart 2000 has been very popular to post online, and it might have inspired similar name-changing memes on the Internet.
"Hey, bub," shouted Mr. Krupp, "I've had just about enough of your shenanigans!" ExplanationWhat Mr. Krupp yells to Melvin when he is destroying the town as the Bionic Booger Boy in Book 6. A version of this scene with a reference to End of Evangelionedited into the background is pretty popular on the Internet.
Web videos
"Underpants, Underpants, I like Captain Underpants!" ExplanationPart of the chorus of "Hooray for Captain Underpants".
The Underpants Dance. ExplanationDuring an instrumental part in "Hooray for Captain Underpants", Captain Underpants does this dance. This part from the video has become a popular GIF.
"Go Poopypants! (Go pants! Go Poopypants, go Poopy!)" ExplanationThe chorus of "Go Poopypants".
Like The Underpants Dance above, Professor Poopypants' dance from the video is also popular.
"This morning's school sign is supposed to read 'Sewage plant field trips are today'. So can either of you explain why it now reads... 'Come see my hairy armpits'?" ExplanationMr. Krupp says this line when George and Harold are in his office. Videos editing this scene often appear on Instagram with different phrases replacing "Come see my hairy armpits". Some of the most popular examples of this meme include one where the phrase on the sign is replaced by "Omae wa mou shindeiru", another one replaces the phrase with "La Di Da Di Da" (the first lyrics of Future's part in the song King's Dead), and is followed by a variant of the "Oh Yeah" meme listed below with this song, while another one shows the letter E.
"I looove Saturday, when anything is possible!" ExplanationThe song George and Harold sing when they wake up on a Saturday morning. This song is the most popular song from the film besides Weird Al's Captain Underpants theme song.
"Quick announcement. Our science teacher, Mr. Fyde, is no longer with us." "He's dead?!" ExplanationA conversation between Mr. Krupp and a girl in the audience during the Invention Convention.
"I carry him everywhere I go... INCLUDING THE SHOWER!!!" ExplanationThis is said by Mr. Krupp when he reveals to the boys that he has kept the Tattle Turtle 2000 from George and Harold. After this line, we cut to a close-up of the Tattle Turtle's face, where it looks as if it is crying due to a drop of water running from its eye. This scene became popular after an Instagram post which asked why the movie wasn't nominated for Best Animated Feature at the Oscars showed this scene.
It's quite popular to make parodies of the "Oh Yeah" scene from the film with another song replacing the original music.
We are Jammin'/Captain Underpants IP Dox. ExplanationOne edit utilizing a theme from Jetpack Joyride gained notability for becoming a basis of another meme, where the viewer is shown an IP address, implied to be theirs, with more and more (fake) personal info being added to the beat of the music.
"Hiya, class! I'm your cool new teacher! Not some scary guy with a secret evil agenda!" ExplanationHow Professor Poopypants introduces himself on his first day of class.
"Oh, look at this. We've got a grade-A suck up. Good to know, good to know!" ExplanationProfessor Poopypants' reaction to Melvin loving his plan to get rid of laughter.
"And this... this is the Hahaguffawchuckleamalus!" ExplanationThe line from the "Brain of Zee Average Child" scene where Professor Poopypants shows the class the part of the brain that controls laughter.
"Hallelujah! Hallelujah! His name is Poopypants, we found his weakness, Hallelujah!" ExplanationGeorge and Harold's reaction to finding out Professor Poopypants' last name via his resume.
The 1812 Ofarture. ExplanationThe version of the 1812 Overture Captain Underpants conducts. Like Saturday and the movie's theme song, this song is pretty popular.
"We're closed for Ebola!" ExplanationWhat Professor Poopypants says to get a little girl away from an ice cream truck he is in which is actually his lab. This scene is popular mainly due to the fact that people are shocked that this line made it into a family film.
"Yeah, those are all really silly names, but there's nothing funny about Professor Pee-Pee Diarrheastein Poopypants Esquire!" ExplanationWhat Professor Poopypants says in reaction to George and Harold making up their own silly names.
"I have come to save the day!" "Yeah, well, I've come to ruin it, so back off, buddy!" ExplanationA conversation between Captain Underpants and Professor Poopypants after Captain Underpants gains superpowers.
"Look at what I've got... A tiny school filled with tiny children and their tiny teachers whose tiny salaries reflect their size and also the value society puts on education!" ExplanationWhat Professor Poopypants says after finding the shrunken school.
One particular screencap of Mr. Krupp dancing in the hallways after he gets asked out on a date and praises George and Harold's comics is pretty popular.
On Netflix, the movie is sometimes seen in the "Critically Acclaimed" section, and people constantly make jokes about this.
BREASTS. ExplanationAn image of Captain Underpants (changed back to Krupp) yelling at George and Harold with the caption on top of the image which became a popular meme to redraw.
"Captain Underpants eats all of his falafel." ExplanationWhat George imagines a boring comic of Captain Underpants would be like. A TikTokspeeding-up and slowing down this scene has gained popularity.
"Forged from the molten plastic of Shindong, China!" ExplanationGeorge says this showing off the Hypno Ring to Mr. Krupp. Like the phrase mentioned above, it also got edited into a TikTok.
"Stop pretending you've learned things here." ExplanationMr. Krupp's reaction to the boys counting how many countries and miles it would take to do a lap around the Earth.
Captain Underpants dabbing in the second episode.
"Is it weird that all these kids look like our classmates?" "Not on our show's budget." ExplanationGeorge and Harold's conversation from the third episode lampshading how all of the Egyptian schoolchildren in the past look like their classmates from the present day.
"WITH YOUR TEETH!" ExplanationIn episode 5, Mr. Krupp punishes George and Harold for trying to T.P. the whole school by having them clean up the mess, and tells them to mow the whole football field afterwards… by having them use their teeth. The boys ask how would they be able to do that, and Krupp responds with the same answer.
U r doo doo. I R NOT DOO DOO!ExplanationIn Episode 12, in an alternate timeline where Jerome Horwitz Elementary is turned into a factory, George and Harold change their sign from,"You Don't Deserve Our Products, You Don't Deserve Us." to "Our Products R Doo Doo". The O, r, and the word products are later knocked off the sign. After Alternate!Melvin's defeat, he looks up at the sign, reads it, and yells his response in anger. This clip became popular to reupload to youtube, sometimes with various edits.
"In second grade, Dav Pilkey created a comic book about a superhero named Captain Underpants. His teacher ripped it up and told him he couldn't spend the rest of his life making silly books. Fortunately, Dav was not a very good listener." ExplanationThe origin story of Captain Underpants, which is commonly spread around the internet as a positive reminder of how you should never give up on your dreams.
There is a series of trollface memes involving a nerd named Melvin, which may have been inspired by Melvin Sneedly.
"Holy shit, Dav. What a fucking savage." ExplanationThe ending line from a 4Chan post which tells the story of Dav Pilkey's experience in middle school with a student named Michael Sneedman (not his real name), who would inspire Melvin Sneedly. This line was in reaction to the part at the end of the story, where, after an incident where Dav purposely knocked over a board with bread clips that was used as a behavior system, Michael got a A instead of an A+ on a test, and he was devastated by this.
"Throw him like a football!" ExplanationPart of the Amazon description for the Merrymakers Captain Underpants plush. A Tumblr post actually shows someone throwing the doll across their bedroom due to this line in the description.
"That's poop!" ExplanationProfessor Poopypants' line on the fake comic cover David Soren created after Captain Underpants: The First Epic Movie didn't receive an Oscar nomination for Best Animated Feature.
