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1.
An expression of guilt that occurs after a particularly smelly bowel movement in a public restroom, seen by someone about to use the same stall. The expression usually includes an immediate downward gaze after initial eye contact followed by a look of panic and fear.
The man that came out of the restroom gave me the Poo Guilt look before I went in... I knew I was doomed...
by The Weem @ SLO July 09, 2009
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