Used to describe a) a person who is so
hammered they can't speak, walk, or
basically do anything other than puke, or b) a party in which several people are puking
all over the place
a) "Shit, Heather was a major slop show
last night!"
b) "Hey did you go to Dave's party?"
"
Yeah man, there was puke
everywhere, it was a total slop show."