Engine Blocked / Mighty Mom and Dyno Dad Meet the Crimson Chin - S3-E5
Continuity mistake: In "Mighty Mom and Dyno Dad Meet the Crimson Chin" Cosmo states that the Crimson Chin comic book has been around since the 1920's, yet when all the Crimson Chins come to help there is no 20's Chin, it starts at the 30's.
Vicy Loses Her Icky / Pixies Inc. - S4-E4
Continuity mistake: When HP does his ball for hole 1, it flies up, and falls diagonally, but at the next shot, it falls vertically.
Totally Spaced Out / The Switch Glitch - S2-E8
Factual error: Based on the direction the car was going, when Timmy's parents drop him off at the fun place that Timmy would soon hate, they were driving on the WRONG side of the road.
The Big Scoop / Pipe Down - S3-E10
Continuity mistake: The meteor seems to jump back and forth - it would have hit before Timmy started charades with his fairies.
Shiny Teeth / Odd Odd West - S2-E15
Revealing mistake: In 'Odd, Odd West,' when Timmy's dad is riding the kids like a horse, Chester's bit goes right through his teeth, and when he closes his mouth it goes through his lip.
Totally Spaced Out / The Switch Glitch - S2-E8
Audio problem: In Fairly Odd Parents, "Switch Glitch", Vicky forced Timmy to do her chores and homework, and stretched a dress on Timmy. He said "I can't do chores in a dress.". Vicky, however, was recording Timmy's voice on a tape, the "in a dress" part, and played the tape, but the tone of voice for "in a dress." was normal, not angry. Shouldn't it be the same?
A Case of Dairy-Uh / Lights, Camera, Adam - S3-E13
Factual error: The man that Vicky has a crush on (or something like that) drinks his tea, but the level doesn't go down.
Action Packed / Smarty Pants - S2-E4
Continuity mistake: In "Smarty Pants", when the academic game ends the score is Dimmesdale 100 and Snerd 99, but right when the game ends it zooms out on the game and both teams have 0 points.
The Big Scoop / Pipe Down - S3-E10
Factual error: After Timmy makes his wish of having no sound, and he finally wakes up, the clock said 7:42 (before we see Timmy waking up), but when he walks there, it read 7:43, then jumped to 7:44 on the same shot.
The Boss of Me/He Poofs, He Scores! - S7-E14
Other mistake: In "The Boss Of Me", when the indestructible pencil appears, as it slowly rotates, the name "everleady" is already written in red on the side. Then Timmy's dad says "I'll call it the Everleady" as if he's created the name.
Odd Squad/For Emergencies Only - S6-E4
Continuity mistake: In "For Emergencies Only", Mr. Crocker's hair is sent back from the pop quiz, and in the next shot, it's back to normal.
Odd Squad/For Emergencies Only - S6-E4
Continuity mistake: When the "Odd Squad" is in Mama Cosma's house for the first time, there is a picture of her by the door. The second time they come, it's gone.
Mighty Mom and Dyno Dad / Knighty Knight - S2-E9
Continuity mistake: In the end scene of Mighty Mom and Dyno Dad (the fight scene), notice the sky is a night sky but later when they loose their powers, Timmy's mom says let's enjoy our nice lunch and it suddenly becomes midday.
Timmy the Barbarian/No Substitute for Crazy - S5-E18
Character mistake: In 'No Substitute for Crazy", When Timmy and Sanjay are leaving the school after Mr. Crocker falls down the well, a few cats come up to them and he introduced an orange one as "Omar." Later, when Mrs. Sunshine is leaving after being substitute for a day, Sanjay has cats around him and comforts "Omar", except he says this to a red cat, not an orange cat.
Wishology! 'The Exciting Middle Part' - S7-E2
Continuity mistake: Timmy and Mark are swimming through the sewer to escape the Chester and AJ impostors and escape through the top. When they land outside of it, onto Timmy's front yard, they are completely dry.
Smart Attack/Operation F.U.N. - S5-E15
Continuity mistake: In "Smart Attack", the scientists in the audience blow up, scattering shoes, glasses and clothing everywhere. In a few shots, after Timmy's dad is changed back to normal, all the clothing and accessories disappear.
Smart Attack/Operation F.U.N. - S5-E15
Continuity mistake: In "Smart Attack", Timmy's dad burns a plate of food right in front of Timmy. In a few shots, the plate disappears.
Continuity mistake: In "For Emergencies Only" were Timmy is in Mr. Crocker's classroom, the board says, 'Pop Quiz Today'. 'Today' is underlined. In the next shot, nothing is underlined. After those two shots, it is all underlined.
Continuity mistake: In 3-8 "The Secret Origin of Denzel Crocker", it showed that Mr. Crocker was 40 years old. (They went back 30 years to his childhood, and he was 10 then.) But in this episode it showed that he was 53 years old. (Everyone aged 50 years, and he was 103. 103-50=53.).
Answer: It's a joke. One cannot list all forms of entertainment. The list would never end. The boys were trying to convey how superior they were to the others, by saying that they were too good for comedy.