speedball

[ speed-bawl ]
/ ˈspidˌbɔl /

noun

a game similar to soccer with the chief difference that a player catching the ball on the fly can pass it with the hands.
Slang. any combination of a stimulant and a depressant taken together, especially a mixture of heroin and cocaine or heroin and methamphetamine injected into the bloodstream.

verb (used without object)

Slang. to take a speedball, especially by injection.

Origin of speedball

First recorded in 1940–45; speed + ball1

British Dictionary definitions for speedball

speedball
/ (ˈspiːdˌbɔːl) /

noun

slang a mixture of heroin with amphetamine or cocaine

Medical definitions for speedball

speedball
[ spēdbôl′ ]

n.

An intravenous dose of cocaine mixed with heroin or an amphetamine.