Top Definition
1.What one would say to another that is acting crazy or doing something foolish.
2.A reply to one who thinks they know it all but yet they are mis-informed.
1. After the man urinated on himself at the podium, a member of the audience stood up to walk out exclaiming, "Man, you be trippen!"
2. John replied "What the fuck you mean by saying the USA has a right to be in Iraq? Man, you be trippen"
by Danbridge September 25, 2007

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