Arfritis Share definition Flag Arfritis is a disease that causes swelling of the muscles, and joints in older dogs. I have an older dog, who has trouble getting to her feet sometimes. I believe she is suffering from a bad case of Arfritis Arfritis by Gary N. October 5, 2007 0 0 Get merch Get the Arfritis mug. Buy Now — $32.95 See more merch
