(noun): a patch of red skin left after one's facial hair rubs against the skin of another. it usually leaves one feeling itchy for a few hours to a day. extrememy uncomfortable. is usually a result of making out.
Dude: "Yo girl, why you twitchin' n scratchin' that red jank on your neck?"
Girl: "I like totally went to first base with Moola last night and got some hxc beard burn!"