act up
Intermédiaire (B1) informal
When a person is being naughty or difficult, or when something stops working the way it should.
"The kids started acting up as soon as the babysitter arrived."
Écoutez en contexte
27
exurb1a · 0:54
Better keep the act up I guess.
Inside a Maximum Security Prison’s Isolation Unit | Solitary Nation (full documentary) | FRONTLINE
FRONTLINE PBS | Official · 27:52
The only way you ever get anything around here is to act up.