As discussed at NPR:
Some dogs are doggos, some are puppers, and others may even be pupperinos. There are corgos and clouds, fluffers and floofs, woofers and boofers. The chunky ones are thicc, and the thin ones are long bois. When they stick out their tongues, they're doing a mlem, a blep, a blop. They bork. They boof. Once in a while they do each other a frighten. And whether they're 10/10 or 12/10, they're all h*ckin' good boys and girls.
Are you picking up what I'm putting down? If not, you're probably not fluent in DoggoLingo, a language trend that's been gaining steam on the Internet in the past few years. The language most often accompanies a picture or a video of a dog and has spread to all major forms of social media...
Even Merriam-Webster is aware of terms like doggo and pupper. Though they have a long way to go before they're eligible for dictionary-entry — they need to be used in published, edited work over an extended period of time — they're definitely candidates.