jab

a sharp hand gesture (resembling a blow); “he warned me with a jab with his finger”; “he made a thrusting motion with his fist”

a quick short straight punch

the act of touching someone suddenly with your finger or elbow; “she gave me a sharp dig in the ribs”

poke or thrust abruptly; “he jabbed his finger into her ribs”

strike or punch with quick and short blows

stab or pierce; “he jabbed the piece of meat with his pocket knife”