WBM

"Working Bowel Movement"

When you are in the process of sitting down to get something important done and immediately after you start you need to take a dump.

Can lead to socially awkward situations when working with a friend or taking a test in school.
Person1: Dude, why the fuck are you sweating?!
Person2: I just got a WBM!! FUCK!
by Diskus104 September 27, 2011
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