For firefighters, a 2 1/2 inch hoseline used to fight large fires.
Captain: Probie, pull the deuce and a half and go to side C
by FFProbie October 19, 2007
2 more definitions
A woman that weighs in the neighborhood of 250 pounds.
She's at least a deuce, probably a deuce and a half.
by Bill August 19, 2004
The standard 2.5 ton truck for the US Army.
Dammit, I am stuck having to drive our deuce and a half back to the shop...
by VP-bofh January 26, 2004