fuck around

1.  Fool around, engage in frivolous activity, as in Stop fucking around and get the job done, or I'm tired of fucking around--let's go home. [Vulgar slang; 1920s]
2.  fuck someone around. Cheat, treat badly or make trouble for someone, as in Stop fucking me around; I know what you're up to. [Vulgar slang; mid-1900s]
3.  Be sexually promiscuous, as in Doesn't he have a reputation for fucking around? [Vulgar slang; c. 1930]