Austininity Share definition Flag 1. To be like Austin Beard. 2. To have Austinness. 3. It just don't make no sense. "That room is decorated with Austininity," said Bill. "Yes, it's full of stupididness." Austininity by Johnson brothers February 24, 2004 0 0 Get merch Get the Austininity mug. Buy Now — $32.95 See more merch