The fat, jiggly pink bad guy from DBZ. He's really dumb and he's made out of pink bubblegum or rubber or something...he's pretty much indestructible.
A girl in my gym class looks like Majin Boo.
by RatchetBoo April 28, 2003
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majin boo is the best and the best and **** you dude
i heat the **** off you dude
by zenaku September 18, 2003
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