It is when you wipe the sweat off you nut sacular and you slap someone in the face.
*Butter Slaps Ron*
Ron: What was that?
David: A Butter Slap.
Ron: What's that?
David: When you wipe the sweat off your balls and slap someone in the face.
Ron: Eww WTF?
by Person88888 March 27, 2012
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To apply duck butter to ones hand, and to slap a deserving person in the nose/mouth: see duck butter
My boss pissed me off so much, I had to give him a juicy duck butter slap across the face.
by KiLLa Es December 3, 2006
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Slapping your girl back and forth across her face with your post-coitus, wet, semi-flaccid penis.
After Rachel got my nut, I treated her to a few warm butter slaps before wiping up and leaving.
by Eaton Holgoode January 20, 2018
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When you put peanut butter on your hand and slap a guy on the face leaving a handprint of peanut butter. Invented by Andy Milonakis.
Vasily got me mad so I peanut butter slapped him while he was jacking off.
by DenisK August 15, 2007
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Stick your penis in a jar of peanut butter, then slap her in the face with those nutty nuts.
I gave a peanut butter bitch slap toEsther, and she licked it off.
by Big daddy d January 31, 2014
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