A woman skilled at fellatio; said to be good on her knees. Used in place of the more vulgar cocksucker or cock sucker, and used to indicate heterosexual sodomy rather than gay sex performed between men.

Among rock musicians a term used to describe certain groupies.
1) She makes me crazy, she is such a fellatrix.

2) After so many of the Mothers of Invention did her that she had dirty knees, they wrote a song about Suzy Creamcheese.
by Anon.23791 July 14, 2006
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Nice term for Cocksucker. A woman who performs fellatio
Suzy Creamcheese, she's one talented little cock sucker. A fellatrix extrordinaire. Got the sweetest lips that I ever cum across.
by Anonymous November 8, 2002
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