Thesaurus
rat (on)
Synonyms and Antonyms of rat (on)
1
to give information (as to the authorities) about anotherʼs improper or unlawful activities
fink, grass (on) [British slang], inform, sing, snitch, split (on) [British], squeak, squeal, talk, tell (on)
drop a dime (on)
2
to leave (a cause or party) often in order to take up another
go back on, jump ship, run out on, walk out on
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