Tapster

from WordNet (r) 3.0 (2006)

tapster
    n 1: a tavern keeper who taps kegs or casks [syn: {tapster},
         {tapper}]

from The Collaborative International Dictionary of English v.0.48

Tapster \Tap"ster\, n. [AS. t[ae]ppestre a female tapster. See
   {Tap} a plug, pipe, and {-ster}.]
   One whose business is to tap or draw ale or other liquor.
   [1913 Webster]