CHAP, verb transitive To cleave, split, crack, or open longitudinally, as the surface of the earth, or the skin and flesh of the hand. Dry weather chaps the earth; cold dry winds chap the hands.
CHAP, verb intransitive To crack; to open in long slits; as, the earth chaps; the hands chap
CHAP, noun A longitudinal cleft, gap or chink, as in the surface of the earth, or in the hands or feet.
CHAP, noun The upper and lower part of the mouth; the jaw. It is applied to beasts, and vulgarly to men; generally in the plural, the chaps or mouth.
CHAP, verb intransitive To cheapen.