1. A common way to say Goodbye. Mostly used in New Jersey/New York/California.
It resembles getting throw of two in dice, thus throwing a peace sign (two fingers)
2. Getting the next drag/pull/hit on either a cigarette or a bong.
3. Another way to say a "shit".
Pauly- Ay man, my girls waiting for me at the crib, ill hit you up later.
Rocco- Aight then man, "Deuces"
Pauly- Fuck homie, this is my last cigg
Rocco- Damn I was gonna ask for one to! Aight, lemme get deuces on that then.
Pauly- Bad fucking idea eating 100$ worth of food at taco bell.
Rocco- Seriously, I needa take a deuce like, RIGHT NOW!