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Region: US | Usage example: He is smart but can't cut the mustard when deadlines loom.

Can't cut the mustard

Meaning

Fail to meet expectations.

Usage

Used when evaluating performance.

Origin & History

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Mustard plants need attention; failing to cut them signals failure.

American phrase from early 20th-century farming talk.

Related Idioms

Cut the mustard

Meet expectations or perform well.

You can't judge a book by its cover

Appearances can be deceiving.

You can't please everyone

It is impossible to satisfy every opinion.

More Idioms

Break the ice

To do or say something to relieve tension or get conversation going in a social situation.

Cut to the chase

Skip ahead to the most important or exciting part of something.

The ball is in your court

It is now your turn to take action or make a decision.

Throw in the towel

To concede defeat or admit a struggle isn't worth continuing.