Spank (?), v. t. [imp. & p.
p. Spanked (?); p. pr. & vb. n.
Spanking.] [Of unknown origin; cf. LG. spakken,
spenkern, to run and spring about quickly.] To strike, as
the breech, with the open hand; to slap.
Spank, n. A blow with the open
hand; a slap.
Spank, v. i. To move with a quick,
lively step between a trot and gallop; to move quickly.
Thackeray.