English dictionary
act up meaning and definition
Definition and meaning of act up at MeaningMonkey.org. act up meaning and definition in the English Dictionary.ACT UP verb
Definition of act up (verb)
- misbehave badly; act in a silly or improper way
- "The children acted up when they were not bored"
- synonyms: carry on
- make itself felt as a recurring pain
- "My arthritis is acting up again"
Source: Princeton University Wordnet