adjective. irritated by abrasion. Probably derived from "ross," meaning outer bark. To ross (v. tr.): to remove the outer bark. By extension in my former community in Allegany County, NY, to abrade the skin, sometimes to the point of rawness.
"The boy's bare legs were rossed when he slid down the rope." Slang expression: "Wouldn't that ross your ass?" meaning, "Wouldn't you be highly annoyed or perturbed to the point of mental or emotional irritation or agitation?"