"We da ETS, we be hangin' wif da Kurt-rock, and we be all up in your shit if you don't pay us your protection, FOOL!"
Kurt, I'm gonna bring my posse up on ETS turf and get me a goddamn refund one of these days CHUMP!
Akin to ETA (estimated time of arrival), etc.
Sounds more official and professional when said aloud.
Usually posed as a question toward someone who --despite the late hour-- still has a lot of things to get done before even thinking about going to bed.
Friend2: "I'm working through a 10-page paper that's due tomorrow and just started a load of laundry."
Friend1: "So what's your ETS tonight?"
Friend2: "Aiming for 4 AM, have to get to work by 10."
"ETS unknown; imminent all nighter..."