Just a few more that can be mentioned here:
T.I.N.S., northern version T.A.N.B.

REMF, AKA Base Camp Commando, easlily recognizable, because of their clean and ironed fatigues, spit shined boots, and the cuts and bruises on their face after some Grunts beat the crap out of them the night before, coming out of a club.

Dien Cai Dau (Dinky Dow), Nuts or Crazy

Beau Coup Dien Cai Dau, Really nuts or crazy. A term of endearment sometimes used by Grunts when referring to a flight crew that just saved their ass.

Ti Ti, a very little or not much, as in "How much time in country do you have left?", "Ti Ti."