cack up
C1 slang separable transitive
In simple words
Make a big mistake and ruin something.
Meanings
1 C1
idiomatic
slang
To make a serious mistake or completely ruin something through incompetence.
"He totally cacked up the presentation by forgetting the most important slides."
Grammar: separable
Usage notes
Crude British slang, not appropriate in formal contexts. 'Cack' is British slang for excrement. Less common than 'cock up' but used similarly. Regional, mostly northern British English.
Commonly used with
interview presentation exam job plan
Forms
Base
cack up
I/you/we/they
3rd person
cacks up
he/she/it
Past simple
cacked up
yesterday
Past participle
cacked up
have + pp
-ing form
cacking up
continuous
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Synonyms
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