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crack up — to laugh uncontrollably

Part of speech: VERB

Definition: to laugh uncontrollably

Pronunciation (IPA): /kræk ʌp/

Example Sentences

  • The cat video made me crack up so hard I snorted milk out of my nose.
  • My grandma cracks up every time she tries to use emoji.
  • The intense workload is causing many employees to crack up.

crack up

VERB

[/kræk ʌp/]

to laugh uncontrollably

The whole class cracked up when the cat walked across the teacher's keyboard.
💡 Concept

The whole class cracked up when the cat walked across the teacher's keyboard.

While they pack up and back up, everyone starts to crack up!
🎵 Rhyme

While they pack up and back up, everyone starts to crack up!

Got the picture? Now let's practice.

🎤Pronunciation

🇺🇸 US/kræk ʌp/
🇬🇧 UK/kræk ʌp/

🌳Etymology

Rootcrack
Suffix-up

Origin

The word 'crack' originated in Middle English, derived from imitative origins mimicking a sharp, sudden sound or fracture. When combined with the particle 'up', the phrase evolved to denote complete disintegration or collapse, and from the early 20th century, it extended metaphorically to describe both uncontrollable laughter and mental breakdown.

Breakdown

crack (to break or fracture, from imitative origin) + up (completely, intensifying particle), forming a phrasal verb expressing total physical or emotional failure.

🎵Rhyme

back up
pack up
stack up

🔗Collocations

crack up laughing
crack somebody up
crack up under pressure
completely crack up
crack up the car
crack up at the joke

📝Examples

😄 Fun example

“The cat video made me crack up so hard I snorted milk out of my nose.”

😄 Fun example

“My grandma cracks up every time she tries to use emoji.”

“The intense workload is causing many employees to crack up.”

“He cracked up his brand new Tesla on his first day of ownership.”

📚Related Words

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