这群年轻人在酒吧里狂欢作乐，直到凌晨才离开。

The young people were ___roistering in the bar until the early hours of the morning.

他在酒吧里大肆吹嘘自己的新跑车，完全不顾别人的感受。

He was ___roistering about his new sports car in the bar, ignoring everyone else.