Near the beginning of this thread, it was mentioned that the Infantry are sometimes referred to as "pongos".
To clarify, a Pongo is a large Bornean ape which digs holes in the ground for no apparent reason.
Sounds like the Infantry to me!
Some other slang:
NDHQ = 1 oh Fun
SD&G Highrs = Sand Dirt and Gravel
Aanyone working(?) at 1 oh Fun = Purple trades
JTF2 = Black Pyjama Gang, John's Trout Farm
L&R Scots (from the late 80's) = Muties
NSE = No Support Ever
NATO = No Action Talk Only
GGFG = Grenades Gone For Good (apparently a case of those went missing, too)
SSF = Secret Squirrel Force
AMF (Allied Command Europe Mobile Force - from the 80's) = Another Month F**ked
Valcartier = Valcatraz
and, finally, a American one:
USMC = Uncle Sam's Misguided Children