by BigBlackSanta July 1, 2020

The impulse you have when someone directly tells you to "DO NOT" but you just NEED to do what they clearly said to NOT DO, just because it will be fun/you NEED to know what happens
Guy G: Buddy, for God's sake, please, DON'T-SUBMIT-THIS-DEFINITION
Guy M: don't worry friend, i won't
Guy G: fine... *leaves*
Guy M: *having the computer in front of me, with URBAN DICTIONARY opened in front of me* NO!.. GO AWAY! STUPIDITY IMPULSE!
Guy M: don't worry friend, i won't
Guy G: fine... *leaves*
Guy M: *having the computer in front of me, with URBAN DICTIONARY opened in front of me* NO!.. GO AWAY! STUPIDITY IMPULSE!
by W.D Shadow Marco C. Krueger October 4, 2017

Something a boy usually calls a girl he thinks is pretty so other people and the girl he likes doesn't know he likes her.
by Llamacorn123 April 22, 2017

by flop dobbins October 10, 2014

by CYN1CAL MIKE February 14, 2015

A D&D (or other similar system) character who uses their chaotic alignment (usually chaotic neutral) as an excuse to do whatever they want, even if it's obviously a lethally bad idea, will piss off the other players, is extremely out-of-character, or a combination of the three.
DM: You see a large corridor with a desk at the end.
Player 1: Whose desk is it?
DM: The nametag on the door behind you said "Planetar General".
Player 2: I shit on the desk.
Player 1: Dude no don't you'll get us killed.
DM: Are you sure you want to do that?
Player 2: My character is chaotic neutral, and as such would do this very stupid thing for the sole reason of causing chaos, regardless of consequences or how anyone else would react.
Player 1: More like Chaotic Stupid.
Player 1: Whose desk is it?
DM: The nametag on the door behind you said "Planetar General".
Player 2: I shit on the desk.
Player 1: Dude no don't you'll get us killed.
DM: Are you sure you want to do that?
Player 2: My character is chaotic neutral, and as such would do this very stupid thing for the sole reason of causing chaos, regardless of consequences or how anyone else would react.
Player 1: More like Chaotic Stupid.
by alternateolympus October 30, 2023

"Dude, why'd you just stick your hand in that jar?"
"Sorry, I had a stupidity-gasm."
"Alright, I'll get the butter,"
"Sorry, I had a stupidity-gasm."
"Alright, I'll get the butter,"
by KittyRah105 November 27, 2012
