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To defecate in one's bag as a practicle joke. Best if used as a means of revenge or suprise. For greater effect, perform the deed before the victim arrives for work or school. Modeled after the infamous Doutcheland Snackbag.
Yo, he's asleep. Break out his bag, I feel a Bavarian Backpack coming on.
by Iventor of the B.B. May 10, 2006