Definition of "Lash" :
noun: a quick blow delivered with a whip or whiplike object
noun: leather strip that forms the flexible part of a whip
noun: any of the short curved hairs that grow from the edges of the eyelids
verb: bind with a rope, chain, or cord
"Lash the horse."
verb: strike as if by whipping
verb: beat severely with a whip or rod
verb: lash or flick about sharply
"The lion lashed its tail."