(chap) noun
1. Colloq. A fellow; lad.
2. Obs. A chapman; a dealer; buyer. [Short for CHAPMAN]

(chap) v. chapped or chapt, chap·ping v.t.
1. To cause to split, crack, or become rough.
2. Scot. To strike with a hammer; pound on.
—v.i.
3. To split, crack, or redden.
4. Scot. To beat or knock, as on a door; to strike, as a clock.
—to chap out Scot. To summon by a tap, as on the window.
—noun
1. A crack or roughened place in the skin.
2. Scot. A rap on the door; a knock of any sort. [ME chappen. Related to CHIP, CHOP.]

(chap, chop) noun
1. A jaw.
2. plural The mouth and cheeks.
3. The jaw of a vise. Also spelled chop. [Cf. ME chaftjaw]