rawr ima dinosaur Share definition Flag Something idiotic wannabe scene girls say, or they write it on the whiteboard before class starts. "Rawr ima dinosaur!" Jadelynn said to her 'bestie' as she put on a hoodie and curled up into a ball. rawr ima dinosaur by Samamamamu July 28, 2015 0 0 Get merch Get the rawr ima dinosaur mug. Buy Now — $32.95 See more merch