Top Definition
What you tell a friend when you want to let him know you just took a dump. Inspired by the phrase as used by Jim Cramer of CNBC's Mad Money.
Friend 1: Hey guy, what's going on with you?

Friend 2: BOO YAH JIM!!!

Friend 1: I bet that was a relief.
by Fer Serial July 19, 2009
5 Words related to Boo Yah Jim!

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