jab 
(j
ăb)
v. jabbed, jab·bing, jabs
v.tr.1. To poke or thrust abruptly: jabbed a knife into the log.
2. To stab or pierce: jabbed the steak with a fork.
3. To punch (someone) with short straight blows.
v.intr.1. To make an abrupt poking or thrusting motion: jabbed at the pickles with his fork.
2. To deliver a short straight punch.
n.1. A quick stab or blow.
2. Sports A short straight punch in boxing.
3. Informal A hypodermic injection.
[Variant of JOB2.]