Paraphrasing a Dead Horse

I really enjoyed how you use this idiom, a vlog, a dead horse. Well, there's only so many times you can mention the word dog. What are the ways to paraphrase dog? Canines, that's very scientific. Four-legged friends is very contrived. So probably not the best choice. Then you asked me another question. Another question. Yeah, like what kinds of pets are common in your country? Get dogs. And Rory said, at the risk of flogging a dead horse in terms of topics. When you flog a dead horse... You repeat the same thing again and again. That's idiomatic language.