Mike: where's Dave
Bill: in the bathroom dropping a duece
Mike: I hope he flushes it

"Hurry up and get out of the bathroom, I gotta drop a duece real bad!"

Give me the keys to the bathroom, I need to drop a duece; (past tense)Don't go in there, I just dropped a nasty duece.

"Yo man, I can't believe how much I ate. Hurry home I gotta drop a duece."

Hey Andrew, be with you right after I drop a duece!

"damn that food hit me hard, i need to go drop a duece"

Sorry I couldn't get to your phone call last night. I was on the crapper blowing out my ass and dropping the duece.