Speedball

Origin

From speed + ball.

Full definition of speedball

Noun

speedball

(countable and uncountable; plural speedballs)

(slang, countable) A mix of heroin and cocaine.
(slang, countable) Coffee with espresso.
(baseball, countable) A fastball.
(uncountable) A competitive variant of paintball with an equal playing field, contrasted with woodsball.