hi, smokey : re "JAG" , here in canada our old and now retired family doctor - speaking of old; he's no older than i am - yikes !.; always said that he was going to JAB you. JAG/JAB, all really good words expressing what's being done to you. OUCH ! hbg
Hi hamburger, jab would be used here as well.
Jab in the dictionary says vaccination which is really the better word.