1 definition by karth95

Top Definition
A process where you begin with the arm at approximately floor level, swinging up in a full fast arc to the persons face, at the last moment balling the hand into a fist, impacting the face with the thumb side of the fist. the fist is instantly released, so that there is no visible explanation as to why the impact was so violent.
Tony got donkey slapped by his girlfriend for screwing around with her sister.
by karth95 May 22, 2008

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