'Tapster' definitions:

Definition of 'tapster'

(from WordNet)
noun
A tavern keeper who taps kegs or casks [syn: tapster, tapper]

Definition of 'Tapster'

From: GCIDE
  • 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]