since i fell off my dinosaur Share definition Flag A term used to describe something that you haven't heard or seen in forever. Me: Dude, is that a Yugo?Friend: Dafuq? I haven't seen one since i fell off my dinosaur since i fell off my dinosaur by batmanbinsuparman December 17, 2012 0 0 Get merch Get the since i fell off my dinosaur mug. Buy Now — $32.95 See more merch