Someone who's become so deliriously happy with having god up their own ass that they try to forcibly shove god up your ass as well.
Godomy is not religion-specific... It refers to ass-rape performed using any dietic being as an insturment of displeasure.
Bob: *whimpers* Godomy. Ow.
Jim: Wow... Did you hear what Pat Robertson and President Bush said today?
Bob: I did. That was some serious godomy.