1. Bart Simpson's way of describing his dad.
2. A big, dumb, balding North American ape with no chin (that has a short temper).
3. A song written by a bunch of high school orchestra students who seem to have nothing better to do.
4. An exclaimation used by said orchestra students.
2. A big, dumb, balding North American ape with no chin (that has a short temper).
3. A song written by a bunch of high school orchestra students who seem to have nothing better to do.
4. An exclaimation used by said orchestra students.
by gbread1012 February 05, 2004

Kwyjibo on the loose!
by SimpsonsFan1969 July 16, 2023

Homer (to Bart): So you're a big dumb balding ape?
Homer chases Bart
Bart: Uh oh, a kwyjibo on the loose.
Homer chases Bart
Bart: Uh oh, a kwyjibo on the loose.
by DZei August 10, 2025

a KWYJIBO is a rule, idea, or excuse. made up on the fly to cheat in a board or video game.
originating from the season one episode 2 "bart the genius" episode of the simpsons where during a gem of scrabble he spells the word "KWYJIBO" and describes it as "a big, dumb, balding North American ape with no chin" as an attempt to get out of the game early
originating from the season one episode 2 "bart the genius" episode of the simpsons where during a gem of scrabble he spells the word "KWYJIBO" and describes it as "a big, dumb, balding North American ape with no chin" as an attempt to get out of the game early
"dude you cant do that its against the rules to do that"1
"since when?" 2
"since forever!" 1
"your full of it thats a total KWYJIBO"
"since when?" 2
"since forever!" 1
"your full of it thats a total KWYJIBO"
by C.T Tracy July 25, 2024

There’s a Kwyjibo on the loose.
by Kmart Queen February 16, 2024

There’s a Kwyjibo on the loose.
by Kmart Queen February 16, 2024
