Definitions by Kronin

T.W.A.T 

Tanker Without A Tank

-from the military.
deprecatory, usually used by light Infantry to mockingly refer to anyone of the Armor branch who has been mission organized or deployed in a dismount or wheeled configuration.

"Hey! Where's your tank, you T.W.A.T.?!"

T.W.A.T by Kronin March 28, 2007