Usually a bunch of people congregating in a stranger's house after a real party or rave ends (or gets
busted). Sometimes there's more
music and booze, but it mostly consists of
random people in corners coming down off of some good rolls, or having sexual encounters in the single dingy bathroom.
"Dude, we can't
make the
four hour drive back to Detriot while the
road's spinning like this, we outta find an afterparty and cool down".