When a girl is giving a terrible blow job and the guy whips his dick out and hits her across the face. This contact will leave a mark. This usually occurs when a girl has braces and is scatching a man's penis in the process of a blow job
The reason why Jennifer Aniston didnt show up to the Academy Awards is being the night before she got fadonked and had a mark that resembled my penis.
by TittyFuckHerAss March 03, 2009
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by Anonymous October 25, 2003
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by Anonymous October 20, 2003
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when one takes his flacid cack and smackes it across the face of another... possibly leaving an indentation or some sort.
Jerome whipped his monsterous cack out of his "sean john" trousers and graciously fadonk'd oprah after learning that she had cheated on him with his own father.
by Skittles March 23, 2004
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by ChristinaLauEileen June 12, 2003
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by david kain February 28, 2007
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by suite 13 November 10, 2005
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