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1.
Its when you clench your fist and hold out your arm to find the perfect vein to shoot up your drugs drugs retards.
i was at the doctor and the male nurse (haha) asked me if I smoked, drank or did drugs, and when he said 'drugs' he looked me right in the eye and did a perfect wrist rocket.
by KG65 September 05, 2009
 
2.
The male ejaculate during self-stimulation
"Where's Terry?"
"Oh, he just went into the bathroom to launch some wrist rockets."
"Oh..."
by KrazyEyezKeller November 08, 2008
 
3.
An HJ. A Hand Job.
Rebecca gave me a wrist rocket on the first date. God Bless America.
by @Mulldozer April 02, 2011