Spick \Spick\, n. [Cf. Sw. spik. See Spike a nail.]

A spike or nail. [Prov. Eng.]

Spick and span, quite new; that is, as new as a spike or nail just made and a chip just split; brand-new; as, a spick and span novelty. See Span-new.

Source: Webster's Revised Unabridged Dictionary (1913)