Entry 4 senses · 2 variants Webster, 1913 Slat /slăt/ · IPA /slæt/ n. v. t. 01 n. A thin, narrow strip or bar of wood or metal; as, the slats of a window blind. 1. A thin, narrow strip or bar of wood or metal; as, the slats of a window blind. 02 v. t. To slap; to strike; to beat; to throw down violently. imp. & p. p. Slatted; p. pr. & vb. n. Slatting 1. To slap; to strike; to beat; to throw down violently.[Prov. Eng. & Colloq. U.S.] “How did you kill him? Slat[t]ed his brains out.” — Marston. 2. To split; to crack.[Prov. Eng.] 3. To set on; to incite. See 3d Slate.[Prov. Eng.] See: Slate