The worst of the fucking worst. Your average dickhead is just a wanker, but when you pull out "Wank Pheasant", it's pretty much the worst thing you can say to a man, the male equivalent of calling a woman a cunt, basically. A man who should have his oxygen privileges revoked.
Donald Trump is an asshole, but Mike Pence is a true Wank Pheasant.
A term used for a low-class femalesociopath who enjoys the art of male genital pleasure. They can be often heard bitching about how everything around them is unfair and how hard it is for them despite no one else giving a shit.