Niggas that I used to hoop with is doing triple life
Gave up the jump shot

from J. Cole – Killers Lyrics on Rap Genius

Meaning

He used to play basketball with people who are going to be in jail for the rest of their life, they traded jump shots for a jail cell

Also, “triple”, as in 3 pointer (usually a jump shot is a 2 pointer). A 3 pointer is longer from the hoop, just as a triple life sentence is longer from freedom

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