Piece of shit. Generally it is referred to when it's fresh out of the corn hole.
Allison ate a whole warm brownie all by herself.
by serna_2008 February 24, 2006
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While having anal sex you suddenly pop both your balls in her ass and bust a nut.
(ME) That bitch is so fine i would definitely put my balls in her ass!

(YOU) Give her a warm brownie surprize.
by Wild Turkey 101 October 10, 2007
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When you manage to get ballsdeep in a chicks ass then pop your nuts inside and blow a load.
Your sister is so damn hott i gave her a Warm Brownie Surprize and left my nuts in her ass all afternoon.
by Wild Turkey 101 September 27, 2007
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Anal sex after your partner has had explosive diarrhea, followed by a blow job
Eric gave Andy a warm banana brownie after he ate a spicy burrito.
by BDivine October 24, 2015
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