act up
To behave badly; act rudely or impolitely.
Плохо себя вести, грубо или невежливо.
The dog acted up as the postman came to the door.
The students often act up during the breaks.
Ученики часто ведут себя плохо на переменах.
To work or run poorly (as a after all machine); skip; miss.
The car acted up because the spark plugs were dirty.