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ass sneak attack, term 'vietnahm' comes from a round of put-put, while the attacker tells the story of how he 'accidentally' probed the seat of his lady...
The act of doing a woman from behind, pulling it out and shoving yourself into her ass and saying 'oops'. Other dictionary terms apply, but not when your last name is Nahm!!!!!
by Dan December 01, 2004
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