The deuce is loose

Taking a huge crap.

I had a dozen tacos for lunch and the the deuce was loose about hour later. Or, when you feel a huge crap coming on, you say "The deuce is loose!"

by Sir_Poopsalot November 19, 2013

The Deuce is on the Loose

Euphemism for a bowel movement, especially diarrhea.

"Hey, how are you feeling? Any better?"

"Yeah my nose isn't stuffed up but the deuce is on the loose, still."

by hiddendragon August 6, 2012

Ma Deuce is on the Loose!

Ma Deuce is on the Loose is military slang, for the effective use of a M-2 .50 heavy machine gun in combat.

The sappers try to cut the perimeter wire, but they get cut down when Ma Deuce is on the Loose!

by I, Wreckerrr October 12, 2016