[1] : The Collaborative International Dictionary of English v.0.48

whoremaster \whore"mas`ter\, n.
   1. a man who practices lewdness; a lecher; a whoremonger.
      1913 webster

   2. one keeps or procures whores for others; a pimp; a
      procurer.
      1913 webster

[2] : WordNet (r) 2.0

whoremaster
     n 1: a prostitute's customer syn: whoremonger, john
     2: a pimp who procures whores syn: whoremonger
see also:
whoremonger john 

Whoremaster >> W Words
Whoremaster, definition of term: Whoremaster
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