Duce is:
1. A tough street gang in the almaden valley.
2. A chill way of saying: later, bye, peace out ect. (usually used more on the southcoast/westcoast.)
2. Instead of saying later dude, you can say "duce", thus it serves its perpose.
Similar to the peace sign and is used often in Houstin, Texas as a greeting.
Chuck a duce when your swangin.
a street gang in the almaden valley,
duce just rolled up here and beat his ass.
street gang found in the almaden valley, very tough, not to be messed with
u see dem duce roll up on that treysie?