Shab (shăb), n. [OE. shabbe, AS. scæb. See Scab.] The itch in animals; also, a scab. [Obs. or Prov. Eng.]
Shab, v. t. [imp. & p. p. Shabbed; p. pr. & vb. n. Shabbing.] [See Scab, 3.] To play mean tricks; to act shabbily. [Obs. or Prov. Eng.]
Shab, v. t. To scratch; to rub. [Obs.] Farquhar.