JAB was an Australian punk rock that band formed in Adelaide in 1976. The band's original lineup consisted of Bohdan X (Bodhan Kubiakowski) on guitar and vocals, Ash Wednesday playing bass guitar, synthesizer and tapes, and Johnny Crash (Janis Friedenfelds) on drums and vocals. The band took its name from the first initials of the founding members. In 1977, Bob Stopa was recruited as a second guitarist, and Pierre Voltaire (Peter Sutcliffe) joined on bass, allowing Wednesday to concentrate on keyboards. JAB defied strict categorization and split audiences with their abrasive sound. The catchcry label for JAB among Adelaide's early music press was "synthetic shock rock"; one contemporary critic described them as "experimental, confrontational synthpunk". JAB have since been recognized as perhaps the first Australian band to marry electronica with a punk aesthetic and hard-edged guitar sound.

A jab is a type of punch used in the martial arts. Several variations of the jab exist, but every jab shares these characteristics: while in a fighting stance, the lead fist is thrown straight ahead and the arm is fully extended. It is an overhand punch; at the moment of impact, the pronated fist is generally held in a horizontal orientation with the palm facing the ground.