This means to snitch on someone or to turn them in. Back when phone calls were only a dime, people would DROP A DIME into the pay phone, possibly anonymously to police. Thus Dropping Dimes got someone arrested or snitched on.
Some one was dropping dimes on me and the police picked me up. I think it was that snitch Jimmy!

Some one dropped dime on me and the police picked me up. I think it was that snitch Jimmy!
by slickFAB May 10, 2016
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"I pity the sorry-ass s.o.b. who dropped dime on Luger."
by westman November 8, 2003
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v. to make an assist in basketball i.e. to pass the ball to a teamate who then successfully scores a basket. Usually this term is used in streetball competitions.
Alex did not score many points in yesterday's basketball game but he led the team with ten assists by constantly dropping dimes.
by Alan and Alex June 11, 2006
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the act of snitching, ratting, or otherwise disclosing information meant to hurt or discredit someone else. This a play on tips and selling someone out.
"Shit, Joey dropped the dime on me skippin class. Man, I'ma kill that motherfucker!"
by Tarrell Bets January 23, 2004
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Drop dime means to rat someone out, or reveal information, in any situation. It derived from late 1960's and 70's South, where there were 33 fires a day at one point, and crime was the highest it ever was. Thus, many people would rat to save thier own ass, and they'd use a dime because that's what it cost.
Yo man, somebody dropped dime on me. My probation officer know about my bid'ness.
by Joe Leffe December 5, 2003
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1. To snitch, tell, sneak, lie, or play frequently; to give up a secret; to spill the beans

2. To litteraly drop a dime or dimebag of cocaine at a drop for a quick drug deal.
1. We gotta ice that fool! He's been dropping dimes!

2. I've been dropping dimes and dropping kilos, all in one day!
by Dre February 2, 2005
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had sweet passes in a basketball game or something related to that
I dropped dimes gurl!
by JG February 28, 2005
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