Top Definition
what you say after realizing you just did something stupid or just saw someone or something stupid or idiotic. similar to fail. coined by jamie l. u. the coolest girl i know.
alex: jamie, your knees are scraped and bleeding, are you alright?!

jamie: i just tripped over a curb and busted my ass, BRAINMPT!!
by alexxx420brainmpt!!! August 20, 2011

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