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When entering a public bathroom and the stink is so bad from some asshole that you have to pull your undershirt over your nose like an Old West bank robber.
Happens a lot in Corporate America where some jackass has eaten their rotten pig anus for lunch and then proceeds to expel the vile remains without using a Courtesy Flush.

"Christ the toilet smelled horrible but I had to piss so bad I couldn't go anywhere else. Then I remembered the Bathroom Bank Robber"
by Shickey Mickey February 17, 2012
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