act up

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Now, there may have been reasons why Buddy acted up.

From Literature

I listen for a whistle when she inhales, a sign her asthma is acting up, but don’t hear one.

From Literature

“This is my insulin pump. It’s been acting up the past two days.”

From Literature

A couple of years ago, a falling durian landed on his shoulder, leaving him with a throbbing pain that acts up now and then.

From BBC

“The smoke and ash made my asthma act up and I couldn’t breathe.”

From Literature