Just like any other shroom, but the side effects never kick in. often used when yelling at the mushroom.
bill: "Did you find any shrooms last night, dude?"
Smokey: "yeah man, but it was a stupid shroom."
Bill: "WTF?"
Smokey: "defective shroom, DUH"
Smokey: "yeah man, but it was a stupid shroom."
Bill: "WTF?"
Smokey: "defective shroom, DUH"
by monkeys come with Iron December 16, 2008
Get the Stupid shroommug. 
When the black girl on the TV show picks 5 black people out of obscurity because she knows that no white people are going to name them all, if any of them, and they're still saying I should know this for 5 minutes after seeing the pictures out of a sense of guilt about looking racist on TV.
She knew before the show started those guys were going to get stuck on stupid and not know what she was doing with them.
by The Original Agahnim June 4, 2021
Get the Stuck on stupidmug. it can sometimes mean that someone is really funny, especially a comedian, movie or any other kind of media. Can also be used to just say someone or something is really good as in "stupid good" but it is now used without the extra word. (i.e. "these mcdonalds fries are stupid bro, grab me an xtra large")
by weenus from venus July 3, 2021
Get the stupidmug. 
A random, uncalled for insult directed at the main protagonist from his colleague in an animated series "Sextra credit".
by syyf October 18, 2025
Get the Stupid faggot little cocksuckermug. by Multi.fandoms April 9, 2022
Get the Stupidmug.