pig rooter 

Man who will fuck any girl, regardless of how fat and ugly she is

Oh man, that guy is a total pigrooter, did you see the fatty he did last night?

pig rooter by Phil Bailey April 13, 2005

pigrooter 

adj.Aust.colloq.1:To have sex with an unattractive person. Derived from the colloquial use of the words pig meaning unatttractive, and root meaning fornication.
2: To have sex like a pig in a jerky motion while grunting loudly.

See above definitions

pigrooter by Fish January 6, 2005