misbehave
verbUK /ˌmɪsbɪˈheɪv/
US /ˌmɪsbɪˈheɪv/
To act badly or not follow the rules.
The children were told not to misbehave during the school trip.
RELATED WORDS
OTHER MEANINGS
2. To behave in an improper or unacceptable way as an adult.
The guest began to misbehave after drinking too much.
3. To work incorrectly or fail to function properly.
The printer started to misbehave and jammed again.
4. To act in a way that is socially inappropriate or embarrassing.
He misbehaved at the party and had to apologize.