Fool's Day Out / Deja Vu - S2-E12
Factual error: In Deja Vu, after Vicky steals Timmy's Cosmo watch, she redoes the time to when it was after school. Vicky redoes the time so that a million cats appear to torture Timmy. They throw him out a window which really has solid glass and no sliding doors. He should have been hit onto the window.
Boys in the Band / Hex Games - S2-E2
Deliberate mistake: When AJ and Chester show Timmy "The Timmy Tuck", AJ says it has a 1400 degree turn. The diagram shows 140°.
Super Bike / A Mile in My Shoes - S2-E6
Other mistake: When Jorgen does wand-ups to Cosmo and Wanda, he counts 1,2,1,2,etc, yet when he does them to Timmy, he counts 1,2,3,etc.
Shiny Teeth / Odd Odd West - S2-E15
Factual error: When Dad gives Timmy an "I Made My Dad Richer" badge made out of a Sheriff badge, the word "Sheriff" is at the top. Shouldn't it be at the middle of the badge?
Super Bike / A Mile in My Shoes - S2-E6
Continuity mistake: When Vicky breaks a dish and dumps garbage in the sink that Wanda (as Timmy) was using to wash dishes, and gives her a shovel, one shot later the garbage disappears.
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.
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.
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.
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.
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.
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?
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.
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.
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.