When one duces (takes shit) and the turd is overly long; qualifies as a "shit and a half" = "Duce n a half".
Bro 1: Dude, you took long enough on the shitter!

Bro 2: Brah it was a duce n a half, it was so long it poked my ass cheek.

Bro2: I love those!
by Brah Slayer November 13, 2011
Get the Duce n a half mug.
big six wheeled truck used by the military, also called a 6 by later to be replaced by the 7 ton
hey Corpral where is the duce and a half? you know that big pos gunny want me to take to the flight line and pick up the new boots in!
by roughriddingcleatus March 12, 2011
Get the duce and a half mug.