Source : Webster's Revised Unabridged Dictionary (1913)

Paster \Past"er\, n.
   1. One who pastes; as, a paster in a government department.

   2. A slip of paper, usually bearing a name, intended to be
      pasted by the voter, as a substitute, over another name on
      a printed ballot. [Cant, U.S.]

Source : WordNet®

paster
     n 1: a workman who pastes
     2: an adhesive label [syn: {gummed label}, {sticker}]