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When a man has a semi-flaccid penis that is saliva coated after recieving oral sex, he smacks the girl who preformed the oral sex in the face with his penis.
"I gave that bitch the shrimp smackdown." I need to give some bitch the shrimp smackdown tonight." "She let me give her the shrimp smackdown."
by Jesse April 04, 2005
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