There are 2 main definitions of crack up in English:

Share this entry

crack up 1

1Suffer an emotional breakdown under pressure.
Example sentences
  • I was short-tempered and I was cracking up a bit under the pressure of it all.
  • ‘If I had not had Diana and the children I would have cracked up and had a mental breakdown by now,’ he said.
  • His stylish arthouse flick looks at three women as they crack up.
2 (also crack someone up) Burst or cause to burst into laughter.
Example sentences
  • He cracks up into laughter, his shoulders heaving uncontrollably.
  • I really cracked up in laughter when I read the headline ‘Protest is the backbone of democracy’.
  • Before I knew it I was buzzed and cracking up with laughter.
See parent entry: crack
Definition of crack up in:
Share this entry

There are 2 main definitions of crack up in English:

Share this entry
crack-up 2 Syllabification: crack-up
Pronunciation: /ˈkrakəp/
(also crackup)


[usually in singular] informal
1A collapse under strain: he had a complete mental crack-up
More example sentences
  • Mark has had one emotional crack-up and one hospitalisation before the stresses have even begun.
  • The directorial debut shows the actress grappling with the aftermath of a crack-up.
  • By the time the reader gets to book four, Donny's been ‘hospitalized for a crack-up.’
2An act of breaking up or splitting apart: the crack-up of a political system
More example sentences
  • It would lead to the crack-up boom and the breakdown of the whole monetary system.
  • Any bump in the road is greeted not just as evidence of the crack-up, but as its beginning.
  • The later the crack-up comes, the longer the period in which the calculation is misguided by fiduciary media.
3A car crash: motorists were asked to report minor crack-ups later
Definition of crack up in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources