drop a dime

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English[edit]

Etymology[edit]

See dime#Etymology 2

Verb[edit]

drop a dime

  1. (idiomatic, slang) To make a phone call, usually means calling the police to report another's activities.
    He was in the back for a few minutes. Turned out he was dropping a dime on Ralph.
    • 1995, Clockers, 00:26:00:
      We got a crowd of black, white customers, out-of-state license plates, what have you. Somebody gonna check that out. They gonna drop a dime on me, call 911. With my jacket, I can't go back to jail.