Source : Webster's Revised Unabridged Dictionary (1913)

Lusk \Lusk\, a.
   Lazy; slothful. [Obs.]

Lusk \Lusk\, n.
   A lazy fellow; a lubber. [Obs.] --T. Kendall.

Lusk \Lusk\, v. i.
   To be idle or unemployed. [Obs.]