Injecting into your arm with a needle heroin that has been disolved in water without boiling it.

From:

Cold Shot = Heroin disolved in water without boiling

Hoop = Slang for heroin
Lyrics from Dynamite Hack's song Boys In The Hood:

"Cruisin' down the street in my 6-fo'
Jockin' the bitches, slappin' the hoe's
I went to the park to get the scoop
Knuckle-heads out there cold shootin' some hoop
A car pulls up, who can it be?
The fresh El Camino rollin Kilo G
He rolls down the window and he starts to say
It's all about makin' that G.T.A."
by Gary W. February 21, 2004
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We were just cold shooting some hoop when that nigga flipped out over a foul or some shit. So we shot him.
by Nick D February 25, 2003
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