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Useful English Word or Phrase to Boost Your English: Slag Off (Phrasal Verb)

Quick summary: An informal UK phrasal verb meaning to criticise someone in an insulting or unkind way.

What does it mean?

To slag off someone means to criticise them insultingly and unkindly, especially when they are not there to defend themselves.

Is it positive or negative?

It is strongly negative.

When do you use it?

Use it in everyday conversation when the situation matches the meaning.

Examples

Example 1: I can't believe he was slagging me off to the boss behind my back.

Question for you

Have you ever heard someone slagging off a colleague?

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