Lap \Lap\, v. t. [imp. & p. p. {Lapped}; p. pr. & vb. n. {Lapping}.] 1. To rest or recline in a lap, or as in a lap. [1913 Webster] To lap his head on lady's breast. --Praed. [1913 Webster] 2. To cut or polish with a lap, as glass, gems, cutlery, etc. See 1st {Lap}, 10. [1913 Webster]