PLASH Meaning of PLASH in English v.tr. 1 bend down and interweave (branches, twigs, etc.) to form a hedge. 2 make or renew (a hedge) in this way. [ ME f. OF pla(i)ssier ult. f. L plectere plait: cf. PLEACH ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012