celebrate
have fun
enjoy oneself
have a party
have a good/wild time
go on a spree
rave it up
carouse
make merry
go out on the town
paint the town red
whoop it up
let one's hair down
make whoopee
live it up
have a ball
примеры использования
The guys partied a lot.
They partied on Eastern Parkway until late night, then drove over to a club in Bed-Stuy.