The Collaborative International Dictionary of English v.0.48:

Licker \Lick"er\ (l[i^]k"[~e]r), n. [Cf. Lecher.]
   One who, or that which, licks.
   [1913 Webster]

   Licker in (Carding Machine), the drum, or cylinder, by
      which the lap is taken from the feed rollers.
      [1913 Webster]