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(v) The motion of taking ones penis, and slapping it across anothers face in a brisk motion; normally cauing severe head and neck trauma. (One is usually fadunked while the "fadunker" is in the process of ejaculation," and almost always leaving a deep purple bruise.
As the 5 year old mexican walked down the dark alley, he was randomly fadunked by a large black, hepes infested penis. He was flung 50 yards and out of the alley, only to be run over by a stolen semi.
by Bosqueef March 08, 2005
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