Army slang for the Browning M2-HB .50-caliber heavy machine gun
"Go grab me a couple of boxes of fifty-cal. I'm gonna make the Ma Deuce sing!"
de Bullzeye 26 Decembrie 2003
1 more definition
Another word for your Mother
Ma Duece was worried about you yesterday, what happen?
de Jae' 08 Iunie 2005