Dinosmash Share definition Flag Slamming a girl so hard that it looks prehistoric. 1:"Sorry I walked in on you and Jessabbelle last night, man. Killer Dinosmash, though!" 2: "It's all good. Thanks!" Dinosmash by MRCWILL August 27, 2015 0 0 Get merch Get the Dinosmash mug. Buy Now — $32.95 See more merch