[? a. MDu. lasche (prob. pronounced lasχə; mod.Du. lasch, pronounced las) piece cut out, flap.] (See quots.)
1864. Couch, Brit. Fishes, II. 125. A hook baited with a slice (termed a lask) from the side of a mackarel.
1874. Wood, Nat. Hist., 581. To pass the hook through the thicker end of the striptechnically called a lask.