Source : Webster's Revised Unabridged Dictionary (1913)

Lashing \Lash"ing\, n.
   The act of one who, or that which, lashes; castigation;
   chastisement. --South.

   {Lashing out}, a striking out; also, extravagance.

Lashing \Lash"ing\, n.
   See 2d {Lasher}.

Source : WordNet®

lashing
     adj : violently urging on by whipping or flogging; "looked at the
           lashing riders"
     n 1: beating with a whip or strap or rope as a form of punishment
          [syn: {whipping}, {tanning}, {flogging}, {flagellation}]
     2: rope that is used for fastening something to something else;
        "the boats were held together by lashings"