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Muck up Meaning in English

expression

ˈmək/ /ˈəp
MUHK-up
mˈʌk/ /ˈʌp
MUHK-up

Definition

To make a mistake or do something badly, often ruining a plan or situation; to mess something up.

Usage & Nuances

'Muck up' is an informal and slightly humorous way to say 'make a mess of' or 'ruin'. Commonly used with things, plans, tasks: 'muck up the exam', 'muck up my schedule'. Less strong than 'mess up'. Not used in very formal situations.

Example Sentences

If you muck up your homework, you may have to do it again.

basic

He always mucks up the kitchen when he cooks.

basic

Try not to muck up the test this time.

basic

I really mucked up my interview—I was so nervous I forgot my own name.

natural

Don’t muck up my plans this weekend, okay?

natural

Oops, I mucked up the order and sent it to the wrong address.

natural