The art of tapping the open mouth of a beer bottle held by an unsuspecting drinker with the bottom of your bottle, resulting in a gush of foamy beer. Poor zenking results in broken or chipped bottles, zero gush of foam, and no cool points.
Johnson ran around the bar zenking people all night long. He was finally kicked out after he zenked the owner and broke his bottle.
by A. Baldwin August 03, 2007