Scrāg, n.

n. [Contracted from Ir. & Gael. scrabach, sgrabach, rough, rugged.]

1. Something thin or lean with roughness; a raw-boned piece; especially, a neck piece of meat; as, a scrag of mutton; hence, humorously or in contempt, the neck.
2. A raw-boned person. [Vulgar.] Halliwell.