Roggeth Share definition Flag 1. A furry dog, spotted generally around Sonoma County California. Originated on the East side of town. Sean: That roggeth is about to get hit by a car! Ryan: Whoa! what a silly roggeth Roggeth by The roggeth catcher February 26, 2009 0 0 Get merch Get the Roggeth mug. Buy Now — $32.95 See more merch