crease up
B2 informal separable both
In simple words
To laugh so hard that your body bends forward, or to make someone laugh that hard.
Literal meaning: To crease means to fold or wrinkle fabric; 'crease up' imagines the body folding forward with laughter.
Meanings
1 B2
idiomatic
informal
To laugh so hard that you bend forward or double over.
"We were all completely creased up by the time he finished his story."
Grammar: inseparable
2 B2
idiomatic
informal
To cause someone to laugh uncontrollably.
"His terrible puns always crease the children up at dinner."
Grammar: separable
Usage notes
Almost exclusively British English. Very vivid and expressive. The image is of the body 'creasing' — folding like fabric — due to laughter. Can be used reflexively or transitively.
Commonly used with
audience friends everyone whole class tears helplessly
Forms
Base
crease up
I/you/we/they
3rd person
creases up
he/she/it
Past simple
creased up
yesterday
Past participle
creased up
have + pp
-ing form
creasing up
continuous
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Synonyms
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