Source : Webster's Revised Unabridged Dictionary (1913)

Dabster \Dab"ster\, n. [Cf. {Dab} an expert.]
   One who is skilled; a master of his business; a proficient;
   an adept. [Colloq.]

   Note: Sometimes improperly used for dabbler; as, ``I am but a
         dabster with gentle art.''