intransitive. Of water: To move with a rippling sound like that made in lapping. Also with in, up.

Of a stream: To glide, flow; apparently used by many writers with a reminiscence or echo of lap, v.1 (sense 4). Also with along. Occasionally of a…

Of waves, water, etc.: To beat or strike on or against something with a slapping sound.

A frequently reiterated sound of lapping. Also attributive.

Used to express the intermittent sound of shallow water over stones: cf. plap, v., plop, v.