Oh, let’s see here…
Squirt box - Radar simulator. Used to test the RWR
RWR (pronounced RAW, for some reason) - radar warning receiver
Donkey Dick - numerous cables, hoses, and probes. Basically, anything that is remotely dick-like
Snoopy - a locally manufactured tool that looked like a Snoopy profile. Used for hanging jamming pods on F4s
Jammer - a bomb lifter/bomb loader. Basically a flattened forklift, used to load bombs, fuel tanks and jamming pods
FWS - Fucking White Shit. White, silicon thermal paste (I only heard this used at one base)
Hat/RF Hat - the covers we placed over the transmit antennas of ECM pods
Block/Blocked/Block In/Block Out - When an aircraft has arrived at or left it’s intended parking spot.
NUB - Non Usable Body. Basically, a newb, someone who is assigned to a job but not yet qualified
Hammerhead - the wide area at the end of a taxi-way, usually right before the runway
Booger-hooker - crew chief
ROAD - Retired On Active Duty. That old NCO that has less than a year until retirement, and just doesn’t give a shit
Jam - to load or install something. On A-10s, we jammed pods, on B-52s we jammed RTs (receiver-transmitters) and chaff
Nonner - anyone that doesn’t work on the flight line
Tweaker - jewelers screwdriver
EWO - Electronic warfare officer
And one of the systems on which I worked had adorable names for the tests, such as ABINGA and ABAGOO.