cracks, cracked, cracking
to crack up
phrasal verb
To start laughing uncontrollably
- 1She cracked up when she saw the funny video.
- 2The joke was so funny that I cracked up.
When something is really funny, you can't stop laughing. It's like your laughter is out of control. This is what we mean by "to crack up." It's when you start laughing a lot because something is so hilarious.
Remember, "to crack up" is about uncontrollable laughter, not just smiling or chuckling. So if you find yourself laughing really hard at something, you're definitely cracking up!
at a water slide
Unexpected Splash
Christopher
Did you see that kid go down the slide backwards?
Dorothy
Yes, and when he landed, he made the biggest splash!
Christopher
I couldn't help it, I just cracked up!
Dorothy
Me too, it was hilarious!
during lunch break
Lunchtime Laughter
Amanda
Did you see how Mr. Johnson slipped on that banana peel?
Barbara
Yes, it was like a scene from a comedy movie!
Amanda
I couldn't help it, I just cracked up right there.
Barbara
Same here, I was laughing so hard my sides hurt!
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Similar to "to crack up":
- 1burst out laughing
- 2lose it