Mess up
verb
To make a mistake or do something incorrectly.
I messed up the last question on the test.

Often appears as...
- messed up the job
- mess up everything
verb
To create disorder, to make something untidy or dirty.
My kids always mess up their room in no time.

Often appears as...
- mess up the room
- mess up the table
verb
To ruin or spoil something.
He messed up his chances of promotion by being late.

Often appears as...
- mess up chances
- mess up an opportunity
Usage tips
Informal
verb
To cause damage to the mental or emotional well-being of someone.
The trauma really messed him up.

Often appears as...
- mess up mentally
- mess up emotionally
Usage tips
Informal
verb
To make a mistake or do something incorrectly.
I messed up the last question on the test.

Often appears as...
- messed up the job
- mess up everything
verb
To create disorder, to make something untidy or dirty.
My kids always mess up their room in no time.

Often appears as...
- mess up the room
- mess up the table
verb
To ruin or spoil something.
He messed up his chances of promotion by being late.

Often appears as...
- mess up chances
- mess up an opportunity
Usage tips
Informal
verb
To cause damage to the mental or emotional well-being of someone.
The trauma really messed him up.

Often appears as...
- mess up mentally
- mess up emotionally
Usage tips
Informal
Definition 1 of 4

Common Confusion
Don't confuse 'mess up' with 'clean up'. 'Mess up' often unintentionally leads to mistakes.

I meant to help, but I only messed up the plan more.
Informal Usage
'Mess up' is casual and mostly used in informal speech or writing.

Sorry I'm late, I messed up the bus schedule.
Common Confusion
Don't confuse 'mess up' with 'clean up'. 'Mess up' often unintentionally leads to mistakes.

I meant to help, but I only messed up the plan more.
Informal Usage
'Mess up' is casual and mostly used in informal speech or writing.

Sorry I'm late, I messed up the bus schedule.
Common Confusion
Don't confuse 'mess up' with 'clean up'. 'Mess up' often unintentionally leads to mistakes.

I meant to help, but I only messed up the plan more.
Informal Usage
'Mess up' is casual and mostly used in informal speech or writing.

Sorry I'm late, I messed up the bus schedule.
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