dial. [Alteration of PLASH v.1]
trans. To pleach (a hedge).
1828. Carr, Craven Gloss., Splash, to cut and trim hedges.
1854. Miss Baker, Northampt. Gloss., To splash a hedge, is to cut away the rough wood and lay in the smooth, trimming it up on the ditch side.
1899. Jrnl. R. Agric. Soc., 1 March, 93. On well managed farms most hedges are splashed about the month of August.