mess about

Verb

 * 1)  To misbehave
 * Kids! Stop messing about and do your work!
 * 1)  To be in a casual non-committal relationship
 * Anna and I are just messing about; this isn't going to last.
 * 1)  To play with; to toy with; to waste the time of (a person).
 * Stop messing me about and give me a straight answer!