When you smoke the joint or blunt down to a stinger or a roach, then proceed to inhale and open your mouth for a split second until it lands on your tongue and extinguishes whereby you eat it. Usually used to get rid of a roach in a public place or to quickly hide the evidence of a smoke session.
Tends to get you higher
Person 1: Hey bro, I think that's a cop over there. Wu-tang the nug real quick.
Person 2 after eating roach: Bro I think that was some reggie , I can taste it.