Jabitzer (tm): A pool (pocket billiards) term. The foul committed when the cue ball is struck twice. Specifically when that first little touch is followed by a reflexive jab at the cue ball.
This is a portmanteau word--that is, a word carrying two meanings. The stroke is a jabitzer; the cueist is also a jabitzer. This invented word won a $25 prize for best new word of the week--partly because its creator wrote I think it's a transitive verb. Didn't look like a verb to me.
Example: That was a jabitzer, DeWayne. Ball in hand.