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1 definition by Boogienights

 
1.
FBI
Fausse Bonne Idea (orig French); An idea that at first seems really good but after some thought or in hindsight, it is actually quite stupid. This is very common amongst teenagers.

I thought I could launch a bottle rocket out of my ass, I guess that was an FBI.

by Boogienights September 24, 2007
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