1 definition by WiltChamberlain

Top Definition
When a guy lunges penis-first at a woman who is laying on a bed with her legs spread wide, aiming for her vagina.

This act has been derived from the words "Slam Dunk," and was widely used by Wilt Chamberlain in his effort to take the "ball to the hole" and "make those outside shots" in venues outside of the sporting arena.
Todd perfected his Clam Dunk form with a little practice, easily Clam Dunking into Sarah's obliterated snatch.
by WiltChamberlain November 06, 2011

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