Green’s Dictionary of Slang

1. other people’s tobacco, always popular among poverty-stricken smokers.

1937–84

Partridge DSUE (1984) 815: [...] C.20.

2. (US black) speed, punctuality [Oriental People Time].

2000

Ebonics Primer at www.dolemite.com 🌐 OPT Definition: Oriental People Time. To perform an action quickly. As opposed to Black People Time (slo as molasses, bitch). Example: You bes be gettin mah clip O.P.T, not B.P.T, mothafucka!