Source : Webster's Revised Unabridged Dictionary (1913)

Corkscrew \Cork"screw`\ (-skr[udd]`), n.
   An instrument with a screw or a steel spiral for drawing
   corks from bottles.

   {Corkscrew stairs}, a spiral staircase around a solid newel.

Corkscrew \Cork"screw`\, v. t.
   To press forward in a winding way; as, to corkscrew one's way
   through a crowd. [Colloq.] --Dickens.

Source : WordNet®

corkscrew
     n : a bottle opener that pulls corks [syn: {bottle screw}]
     v : move in a spiral or zigzag course [syn: {spiral}]