Carkhole Tugging
The act of pulling vigorously with ones mouth upon the aft portions of dead and bloated seals on the beach. This is most commonly done by the most vile of canine species. A pre-sterilization process of urininating upon the carcass is also quite common, known as "seasoning". A North Atlantic variant is known as "The Digby Tug". Other similar activities are Carkrubbing (frottage), Carkface Nuzzling, and the most rare, Carkspooning. They are all basically the canine interpretations of necrophilia.
"Wowzers, look at Digby go! He's a real champ at Carkhole Tugging! What a way to get the day started!"