Top Definition
Adj. /Bih-tay-nuss/ Describing an object or person having qualities that imply an abnormal amount of stank, or unusual promiscuity. This word, derived from a contraction of butt and anus, is more often than not used to describe a woman of particular boorishness or whorishness.
Gentleman I- Have you met Bernard's wife Veronica?

Gentleman II- I have not, though I heard she performed fellatio upon both Arthur and James.

Gentleman I- Alas, it is true. Such a bittanus woman I have never seen. It has been said that her snach is stankier than Monica Lewinsky herself.
by James M. Enitnelav MD, PHD January 19, 2010
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