1　screw around鬼混日子

Don't screw around with her. She's got a terrible temper.

(给你)一个忠告, 别跟她乱来, 她的脾气可坏得很!

2　fool around 闲荡；游手好闲；干无用的事

A:They always fool around when the boss is not in the office.

老板不在办公室的时候，他们总是到处闲荡。

3.goof around 消磨时间；随便玩玩

I thought, why not just goof around with him?

没有人游手好闲，就我和她。