Meanings
How to pronounce "crack up":
AU
To laugh heartily.
Example: "It was hilarious. We were cracking up the whole time."
To cause to laugh heartily.
Example: "The joke about the nuns in the bath cracked me up."
To become insane; to suffer a mental breakdown.
Example: "She got through the war, but cracked up when her sister died."
To cry up; to extol.
Example: "This new computer system is not what it was cracked up to be."
To crash an aircraft or automobile.
Example Sentences
1
I couldn't help but crack up when I saw my dog trying to wear my shoes.
2
The funny scene in the movie made me crack up with laughter.
3
My friend always tells the funniest stories that make everyone crack up.
4
We started to crack up when we saw his silly dance moves.
