A term refering to the female genitalia after you have serviced it properly from behind. After 2-3 hours, it should have lost its lubricity, becoming "shiney." A name to call a buddy who reminds you of a "well serviced vagina."
A swine wank knobfucker is someone who is always a douche. Even at their nicest they are extremely rude. Most commonly they have daddy issues and manage to Piss you off all the time
Jim at the party last night was a real swine wank knobfucker
1.
Charles couldn't bring himself to finish his taxation law assignment as he was suffering from an acute case of late-semester sinefuckency
2.
Bloke 1: That bloke couldn't have appeared less interested in doing his job properly if he'd tried!
Bloke 2: Agreed, the sinefuckency was strong with that one!