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1.
To take a bowel movement, esp. A large or exceedingly smelly one.
Oh, I'm 'bout to Duce it! Ya'll best keep out the bathroom.
by The one and only Loki November 20, 2005
 
2.
To pound fists with crossed hands.
Duce it!
You better duce it!
by fr34kz0r February 09, 2005