Synonyms and Antonyms of grass on
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, squeal (on) [British slang], inform, rat (on), sing, snitch, split (on) [British], squeak, talk, tell (on)Related Words betray, give away, turn in; backstab, cross, double-cross, sell (out), two-time; blab, tattle; tip (off)
Learn More about grass on
Seen and Heard
What made you want to look up grass on? Please tell us where you read or heard it (including the quote, if possible).