mis ‧ be ‧ have /ˌmɪsbɪˈheɪv/ BrE AmE verb [intransitive]
[ Word Family: noun : BEHAVIOUR/BEHAVIOR , MISBEHAVIOUR/MISBEHAVIOR , BEHAVIOURISM/BEHAVIORISM , BEHAVIOURIST/BEHAVIORIST ; verb : ↑ behave , ↑ misbehave ; adverb : BEHAVIOURALLY/BEHAVIORALLY ; adjective : BEHAVIOURAL/BEHAVIORAL ]
( also misbehave yourself ) to behave badly, and cause trouble or annoy people OPP behave :
George has been misbehaving at school.
Students have a tendency to misbehave themselves at exam time.