grass on

verb, British slang

Synonyms and Antonyms of GRASS

to give information (as to the authorities) about another's improper or unlawful activities <that bloke would grass on his own mater to save himself>
Synonyms fink, grass (on) [British slang], inform, rat (on), sing, snitch, split (on) [British], squeak, talk, tell (on)


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