in reference to a D&D character, extremely dumb and unintelligent. One can be classified as chaotic stupid if they do such things as taking a more complicated way to do things, or do something the party has told them not to, for no reason.
DM: "Okay guys, you enter into the room and there's a button in the middle of the room."
Player 1: "Okay. Don't press the button guys. It could be a trap. Let's just continue."
Player 2: "What colour is this button?"
Player 1: "Does that matter?"
DM: "It's bright red like the buzzers on Family Feud."
Player 2: "I can't resist it. I push the button."
Player 1: "Really? We got Mr. Chaotic Stupid over here don't we?"
by UrbanSparkles October 28, 2020
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A character in Dungeons & Dragons games with a "Chaotic Evil" alignment, played poorly and to the detriment of the game, usually resulting in the deaths of the character and his allies.

(See also: Lawful Stupid)
Chaotic Stupid Player: I kill the girl.

DM: ...Why?

Chaotic Stupid Player: Because I'm evil.

DM: Okay, you murder the little girl in front of everyone to show how totally badass and evil you are. The militia charge you down and kill you.
by Yorenaymkantbiblanc August 14, 2010
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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.
by alternateolympus October 30, 2023
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