The Collaborative International Dictionary of English v.0.48:

Tom \Tom\, n.
   The knave of trumps at gleek. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tom \Tom\, n.
   1. A familiar contraction of Thomas, a proper name of a
      man.
      [Webster 1913 Suppl.]

   2. The male of certain animals; -- often used adjectively or
      in composition; as, tom turkey, tomcat, etc.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

Tom
    n 1: (ethnic slur) offensive and derogatory name for a Black man
         who is abjectly servile and deferential to Whites [syn:
         Tom, Uncle Tom]
    2: male cat [syn: tom, tomcat]
    3: male turkey [syn: turkey cock, gobbler, tom, tom
       turkey]