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1.
Placing your partners head into a toilet (Similar to a swirlie) and fornucating with them doggiestyle after recently excreting feces into it. (BUT DO NOT FLUSH)
A wet brownie is a perfect way to make that prom night special, especially when you are forced to share a hotel room with several other couples and want privacy.
by JJAV April 18, 2008
 
2.
a mix between a wet willy and a dirty Sanchez
Jesse: Man that was fucking gross
Tony: What?
Jesse: That dude just gave me a Wet Brownie
by T-Money489 October 29, 2007