The noun jab has 3 senses (first 2 from tagged texts)
1. (1) jab, jabbing, poke, poking, thrust, thrusting -- (a sharp hand gesture (resembling a blow); "he warned me with a jab with his finger"; "he made a thrusting motion with his fist")
2. (1) jab -- (a quick short straight punch)
3. dig, jab -- (the act of touching someone suddenly with your finger or elbow; "she gave me a sharp dig in the ribs")
Overview of verb jab
The verb jab has 3 senses (first 2 from tagged texts)
1. (2) jab, prod, stab, poke, dig -- (poke or thrust abruptly; "he jabbed his finger into her ribs")
2. (1) jab -- (strike or punch with quick and short blows)
3. stab, jab -- (stab or pierce; "he jabbed the piece of meat with his pocket knife")