In the US Military one common term was FIGMO, politely it meant "Forget It, Got My Orders", I'll leave it to you & Google to figure out what it really meant. Another term was "DEROS" meaning Date Eligible for Return from Overseas, the date when you'd leave to go home. It's worth a Google as well if for nothing else the trench art. You'll find that there'll be a count of days "and a wake up" with some very um..colorful calendars, but I digress.
A term I've heard in the Pacific Northwest is "dundy" (done-dee?) not sure of the spelling, I've never seen it in print. It means you're done, finished, ready to go home, usually in a "I'm sick & tired of this" connotation. In Hawaii, you'll hear "All pau now" or "pau hana" which generally means "we're done doing whatever it was we were doing, let's go home/ get a drink".
In Malay, you will hear: "sudah?" as in "done already?". And in Hainanese you might hear: "ho mei?" which is nearly identical in meaning to "sudah" at least to this gwai-lo's ear (my wife is Malaysian & ethnically Chinese).