SLAG (SOMEBODY) OFF


Meaning of SLAG (SOMEBODY) OFF in English

slag somebody ↔ off phrasal verb British English informal ( see also ↑ slag )

to criticize someone in an unpleasant way, especially when this is unfair:

He’s always slagging her off behind her back.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.