Doggeryes is an offensive slang and commonly shortened to simply "dog." A doggeryes has an unhealthy obsession with his/her dogs, usually in a sexual and intimate manner
Drex was most put out at the expectation that he should shaft Big Lady after she had made him another fine meal..
All he really wanted to do was go to sleep, but the thought of her labelling him a "Shag Dodger" in the morning was too depressing to contemplate so he reluctantly Rogered her brains out several times..