Twogging, if you haven't figured it out yet, is a portmanteau of the terms "twerking" and "dogs." In other words, you shake your ass in your dog's face. When a cat's involved, it's called "twatting," but thankfully that doesn't happen as often. Look, I'm no animal lover but I'm pretty sure this counts as animal cruelty. Or if not cruelty per se, then certainly severe confusion-causing. Still, it's better than being addicted to heroin, I guess.
Sources: HuffPo Comedy