Definitions by s:

patsy

scapegoat. red herring. person accused of a something as a cover for a bigger more elaborate crime.

Oswald was a patsy in the Kennedy assassination.

patsy by s: October 19, 2004

polygamy 

1. to have more than one wife.
2. to be honest with your partner about your filandering / desire to have sex with other women.
3. to have a harem

I was going to dump Amanda and hook up with Margaret but we decided to engage in some polygamy instead.

polygamy by s: August 19, 2004