when you finger a girl in da butt and then make her lick your finger
Man this girl pissed me off so much i gave her a brownie finger.
by herpes June 4, 2003
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When first dating someone, to show your affection, you stick your finger in each others butt. Pull them out and you have brownie fingers.
Me and my lady definitly traded brownie fingers last night.
by Matthew Penner November 13, 2007
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