Vicy Loses Her Icky / Pixies Inc. - S4-E4
Factual error: In the final frenzy at hole 18 (at least that's what I called it), the ball falls, but when we see the ball again, it starts rolling. Shouldn't it have bounced?
The Big Superhero Wish - S4-E3
Continuity mistake: I don't remember if it's this episode or not... When Timmy opens his locker and finds a stack of papers, and they fall on him, they multiply to fill the whole hallway.
Factual error: When the characters in this cartoon are floating, the shadow circle on the ground is smaller when they are higher and bigger when they closer to the ground.
Continuity mistake: When Timmy first finds the place in the license plate maker where you stick letters in, there were 7 slots, but later when we see him spelling "I wish I was ten", there are 12 slots, enough to fill in that sentence, without the spaces.
Sleep Over And Over / Mother Nature - S3-E6
Continuity mistake: We know one hail van crashed through the 'Welcome to Brightburg' sign, but when the earthquake is sent to Brightburg, the sign's back to normal, no hole in it.
Totally Spaced Out / The Switch Glitch - S2-E8
Continuity mistake: When Timmy seals himself in his closet, he boards up the door, but the nails and holes don't match places.
The Big Scoop / Pipe Down - S3-E10
Continuity mistake: Chester is on the tree branch and we hear Timmy say, "This is a list of stuff I'll need for the party tonight." Then there is one poof, and Timmy's room is filled with stuff. In A Wish Too Far, Timmy says the thing about the list of stuff, and then he says the things on the list out loud one at a time, and each time Cosmo and Wanda poof in stuff.
Shiny Teeth / Odd Odd West - S2-E15
Revealing mistake: In 'Odd, Odd West,' Timmy's mouth goes right through his mask.
Super Bike / A Mile in My Shoes - S2-E6
Continuity mistake: After dad takes off the cloth (or something) covering the homemade bike, one rusty pipe handlebar handle snaps off. A shot somewhere after that has the handlebar ends switched.
Crime Wave / Odd Ball - S3-E11
Continuity mistake: In 'Crime Wave', the bathroom door handle is on the wrong side after Dad puts the door back together. Also, the pieces put together don't match the ones that were broken out.
Most Wanted Wish / This is Your Wish - S3-E4
Revealing mistake: In Most Wanted Wish, pretty much everybody's eyebrows are in their hair.
Odd Jobs / Movie Magic - S3-E2
Continuity mistake: In the episode "Odd Jobs", when Timmy's dad is a racecar driver he nears the finish line, his car explodes, and he goes flying, landing within inches of the finish line. However, at the next shot of the cars driving across the finish line, Timmy's dad is now lying a number of feet away.
Fairy Fairy Quite Contrary / Nectar of the Odds - S2-E10
Plot hole: During the magical duel, Jorgen counts off the seconds until the end; '3,2....' Remy then screams at his godparent, and about five more seconds pass. Time should have run out.
Where's Wanda? / Imaginary Gary - S3-E12
Continuity mistake: Gary does a sliding trick with the apple, eats it, and throws it as if Timmy were beside him, yet at the next shot, only Mom and Dad are there, not Timmy. Also, Timmy is farther away from Gary.
Vicy Loses Her Icky / Pixies Inc. - S4-E4
Continuity mistake: When Ms. Waxelplax tries Timmy's homemade golf course, her ball hits a windmill, knocking it loose. The windmill flies forward like a propeller but on the next cut, flies sideways.
The Big Superhero Wish - S4-E3
Continuity mistake: Probably around the time when Elmer (kid with boil) the normal kid bends the Baby Shredder (Vicky's) claws, the boil jumps from one cheek to the other, and Elmer's making it do that.
Vicy Loses Her Icky / Pixies Inc. - S4-E4
Factual error: In "Vicky Loses her Icky", when evil Ms. Waxelplax nails up the classroom door, the nails and holes are all crazy and do not match places (using a mirror, that is).
Mighty Mom and Dyno Dad / Knighty Knight - S2-E9
Deliberate mistake: Timmy's eyebrows show through his armor.
Totally Spaced Out / The Switch Glitch - S2-E8
Continuity mistake: After Timmy encounters Wanda the etch-a-sketch bat (and current godparent of Little Vicky) and before he goes out of the closet, the boards, nails and holes disappear.
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.