crack (sb) up
informal— phrasal verb with crack uk/kræk/us/kræk/verb
C2 to suddenly laugh a lot, or to make someone suddenly laugh a lot:
I took one look at her and cracked up.
There's something about that guy's face that just cracks me up.
Thesaurus: synonyms and related words
Laughing and smiling
- amused
- be all smiles idiom
- be in convulsions idiom
- be rolling in the aisles idiom
- be wreathed in smiles idiom
- beam
- bust
- gale
- giggle
- giggler
- giggly
- grin
- grin/smile from ear to ear idiom
- simper
- smile
- smiley
- smiling
- smilingly
- smirk
- stitch
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