dropping a dime

Verb

drop a dime (third-person singular simple present drops a dime, present participle dropping a dime, simple past and past participle dropped a dime)

1. (idiomatic, slang) To make a telephone call.
2. (slang, with-on) To inform, to call the authorities (on).
   • Near-synonyms: give [someone] up, give [someone] away; spill the beans, let the cat out of the bag

   Synonyms:

   dime, snitch, rat out, grass up, bewray, blow the whistle, clepe, denounce, dime out, dob