drop a dime 

To snitch on someone. Often, to save their own ass. Comes from the old cost for a payphone call, ten cents.

"John got popped, so he dropped a dime on his supplier and they let him go."

drop a dime by Geoff B January 9, 2004

drop a dime 

To narc somebody out, like Huggy Bear always does on Starsky and Hutch.

Huggy Bear's always dropping a dime, I can't believe he's still alive.

drop a dime by King Whang August 25, 2005

DROP A DIME 

To rat someone out. As in telling the police about a drug deal.

Imma drop a dime on these niggaz.

DROP A DIME by Anonymous June 16, 2003

DROP A DIME 

To tell on someone

DROP A DIME by Mark April 14, 2003

drop a dime 

1. To snitch on another individual, usually to report an illegal act to law enforcement.
2. To unknowingly waste an exceptional amount of money on something.

Drop a dime (verb):
1. "I can't get bud anymore because some punk snitch dropped a dime on my only supply."
2. "Damn, you see Juan's '84 Accord with 22 dubs on it? He dropped a dime on that pos."

drop a dime by dubcduke April 12, 2007

DROP A DIME 

to throw a nice pass; in basketball terms, an assist

yo check it Bibby just dropped another dime to Vlade!

DROP A DIME by LilBibby2342 June 27, 2005

Drop a dime 

To inform on someone who committed an unacceptable or illegal act. Back in the day, phones in booths cost ten cents for a call. A caller would drop a dime into the coin slot to make a phone call to the police.

Watch out for that guy, or he’ll drop a dime on you. I heard he narked onJohn for holdin’ an eigth.

Drop a dime by Plain Brown Wrapper June 12, 2018