gyattasaurus Share definition Flag 1. A dinosaur with a big gyat. 2. A dinosaur sized gyat. To refer, look at niggasaurus. :) A gyattasaurus niggasaur. 1. Woah! Look at that gyattasaurus. 2. Dam. She got that like a gyattasaurus. gyattasaurus by gyatta69 March 8, 2024 0 0 Get merch