1. To smoke up all the weed in the bowl of a pipe,bong,etc as in cashed. 2. To be extremely high/drunk or both. 3. To break, destroy, eliminate etc. Originated from Lilburn 420krew.
Why did you just pass me a bowl thats keyed out? After smoking a blunt of northern lights and drinking a fifth of moonshine, man i was keyed out. Robs hookah is relly gay, lets go key it out in front of his house.