Shit Brix Share definition Flag 1) To be extremely shocked, startled, or otherwise amazed.2) Another way of saying "get pissy" 1) When you see it, you'll shit brix.2) My mom shat brix when I brought the car home with a flat tire. Shit Brix by GottiKid January 9, 2010 0 0 Get merch Get the Shit Brix mug. Buy Now — $32.95 See more merch