Jab

v. thrust, poke; punch, hit; inject with a hypodermic needle (Slang)

n. thrust, poke; quick punch, blow; injection (British Slang)

JAB was an Australian punk rock band formed in Adelaide in 1976, with Bohdan X (often referred to simply as Bohdan) on guitar and vocals; Ash Wednesday playing bass guitar, synthesizer and tapes, and; Johnny Crash (Janis Friedenfelds) on drums and vocals. Bohdan was also the songwriter of the group, which took its name from the first initials of the founder members. They began as an experimental rock band, but adopted a punk style in 1977. They are regarded as the first Australian group to marry electronica and a hard-edged guitar sound.
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A jab is one of the four main punches used in boxing, the three others being the uppercut, the hook and the cross. When you are in a boxer's stance you have one foot and fist out in front of you and a fist and foot behind you. When you punch straight with your lead fist you do a lead right or lead left when you use the hand in back you turn your core muscles and punch straight that is called a straight right or a straight left, but it is often called a cross. Out of all four, the jab is perhaps the most popularly known one, because the word is often used in talk unrelated to boxing. Many also consider the jab to be the most important punch in boxing, as well. It is rarely the strongest punch in a fighter's arsenal. The Compubox computerized punch scoring system divides punches between jabs and power punches.
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Noun
1. a sharp hand gesture (resembling a blow); "he warned me with a jab with his finger"; "he made a thrusting motion with his fist"
(synonym) jabbing, poke, poking, thrust, thrusting
(hypernym) gesture
2. a quick short straight punch
(hypernym) punch, clout, poke, lick, biff
3. the act of touching someone suddenly with your finger or elbow; "she gave me a sharp dig in the ribs"
(synonym) dig
(hypernym) touch, touching
(derivation) prod, stab, poke, dig
Verb
1. poke or thrust abruptly; "he jabbed his finger into her ribs"
(synonym) prod, stab, poke, dig
(hypernym) thrust
(derivation) dig
2. strike or punch quick and short blows
(hypernym) strike
3. stab or pierce; "he jabbed the piece of meat with his pocket knife"
(synonym) stab
(hypernym) thrust
(hyponym) goad, prick

n. jab, quick punch, blow

(v. t.)
To thrust; to stab; to punch. See Job, v. t.
  

(n.)
A thrust or stab.