yardbirdosaur Share definition Flag Chicken. It is chicken. They look like dinosaur s when you really look at them. I was so drunk I couldn't remember the word chicken and called it a yardbirdosaur. yardbirdosaur by Jude Cormier July 2, 2021 0 0 Get merch Get the yardbirdosaur mug. Buy Now — $32.95 See more merch