Meaning of the word "act up" in English
What does "act up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.
act up
US /ækt ʌp/
UK /ækt ʌp/
Phrasal Verb
1.
behave badly or improperly
Example:
•
The children started to act up during the long car ride.
•
If you act up again, you'll be sent to your room.
2.
(of a machine or part of the body) fail to function properly
Example:
•
My old car always starts to act up in cold weather.
•
My knee has been acting up ever since I went for that long run.
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