Basically describes when someone is so high onopiates that it constricts your pupils to tiny pin-points.
The neighborhood junkie kept insisting she was sober but there's no denying she's still using, given that she's pinned out and can't keep her eyes open or stop itching. That junkie is as pinned out as a tweaker is spun.
Telltale sign of Opiateintoxication; Large doses of Heroin etc cause the users' pupils to shrink to tiny pinpoints - which to the practised eye , a drugs worker say , easily discredit a junkies' protestations of sobriety
A term of embellishment used by motorcycle riders to describe their assesment of speed. Usually used to enhance the story of a crash or stunt gone bad.