Track Runner

Pretty much the same thing as a heroin shooter. The arm is the 'track', the addict is the 'runner'.

Nurse: He has some small injections between his junk and legs.

DEA agent: He is a track runner.

Nurse: A what?
A: He is a heroin addict.

by akghfaiwjfkasjvkajgk;ae April 06, 2011