jag

noun

1. Acronym of judge advocate general.

   “Of the three JAGs who were dismissed, I know Lt. Gen. Charles Plummer and worked with him for more than three years.”

verb

Etymology: The noun is from late Middle English jagge, from Old English giagga, giacga. The ultimate origin could be sound-symbolic of sudden movement, compare with jam, rag and Middle English dag, of which jag may be a palatalised variant. The verb is from jaggen, from Old English giacgian.

1. To cut unevenly.

   “On the Friday […] we had been playing tennis and in some way Geoffrey jagged a finger nail so that it kept catching in his things whenever he touched it.”

2. To pierce with a sharp object.
3. To tease.