spat imperfect of Spit. [Obs. or R.]

Spat, noun [From the root of spit; hence, literally, that which is ejected.] A young oyster or other bivalve mollusk, both before and after it first becomes adherent, or such young, collectively.

Spat, intransitive or transitive verb To emit spawn; to emit, as spawn. Spat, noun [Cf. Pat.]

1. A light blow with something flat. [U.S. & Prov. Eng.]

2. Hence, a petty combat, esp. a verbal one; a little quarrel, dispute, or dissension. [U. S.]

Spat, intransitive verb To dispute. [R.] Smart.

Spat, transitive verb [imperfect or past participle Spatted; present participle or verbal noun Spatting.] To slap, as with the open hand; to clap together; as the hands. [Local, U.S.]

Little Isabel leaped up and down, spatting her hands. Judd.

Spat, noun [Short for Spatterdash.]

1. A legging; a gaiter. [Scot. & Dial. Eng.]

2. A kind of short cloth or leather gaiter worn over the upper part of the shoe and fastened beneath the instep; – chiefly in pl.

-- Websters 1913