A smoother way of saying you just had the shit of a lifetime. The kind that makes you proud to be a man and floating on cloud 9 afterwards.
Stems from the childhood question about going to the bathroom. #1 being urination; #2 being defecation…
“Deuce” meaning the #2 card in poker or a snake eyes in craps.
Man 1: Dude where the hell you been? This place is swarming with hotties... I need my wingman..
Man 2: I was dropping a Deuce. Who do you want? I'll get her and her friends.