sock

sock (http://definr.com/sock)

     n 1: hosiery consisting of a cloth covering for the foot; worn
          inside the shoe; reaches to between the ankle and the
          knee
     2: a truncated cloth cone mounted on a mast; used (e.g., at
        airports) to show the direction of the wind [syn: windsock,
         wind sleeve, drogue]
     v : hit hard [syn: bop, whop, whap, bonk, bash]