Entry 3 senses · 2 variants Webster, 1913 Lasher /lăsh'-ẽr/ · Lash·er · IPA /ˈlæʃə(ɹ)/ n. n. 01 n. One who whips or lashes. 1. One who whips or lashes. 02 n. A piece of rope for binding or making fast one thing to another; -- called also lashing. 1. A piece of rope for binding or making fast one thing to another; -- called also lashing. Also: lashing 2. A weir in a river.[Eng.]