lark around
phrasal verb with lark verb uk/lɑːk/ us/lɑːrk/
informal (UK also lark about)
傻玩，胡闹，嬉戏
to behave in a silly way because you think it is funny
I was woken up by a couple of drunks larking around in the street. 我被街上几个醉鬼的嬉闹声吵醒了。
We were just larking about - we didn't mean to do any damage. 我们当时只是在闹着玩——并不想搞破坏。