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Region: General | Usage example: They removed the bad apple before the scandal spread.

Bad apple

Meaning

A single person who can spoil the reputation of a whole group.

Usage

Used when isolating someone who causes trouble.

Origin & History

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

Observation that one rotten apple spoils the barrel.

Appears in moral warnings since the 18th century.

Related Idioms

Apple of my eye

Someone cherished above others.

Apple don't fall far from the tree

Children often resemble their parents.

Apple doesn't fall far from the tree

Children often resemble their parents, either in looks or behavior.

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.