mess around with
phrasal verbmess around (with somebody)
(British English also mess about (with somebody))
- to have a sexual relationship with somebody, especially when you should not
mess around with something
(British English also mess about with something)
- to touch or use something in a careless and/or annoying way
- Who's been messing around with my computer?
- to spend time playing with something, repairing something, etc.