The military has contributed many phrases to the modern American lexicon, such as FUBAR and SNAFU.
Having been raised in a second-generation military family the military, the Navy specifically, has donated some colorful or interesting phrases to our family lexicon.
Head (latrine to the AF and Army types) ~ the facilities
Cluster f*** AKA Goat rope ~ an irretrievably messed up situation
soup sandwich ~ anything sloppy in appearance or poorly run
Gee-dunk ~ Snacks or place to aquire same
Bug juice ~ kool-aid type beverages
Fart sack ~ sleeping bag (I don't personally use this one, but the males in the family do)
Last, but not least, we have...
pull chocks.Here you have not only the phrase, but also the accompanying hand gesture. Hands start together in front with fists closed, thumbs extended, and move out horizontally.
This is one of the most used around here, great for signalling escape time from public gatherings, even from the other side of the room, so you can converge at the exit and decamp smoothly, undetected even, if necessary.