Shmack Share definition Flag An adjective usually used to describe food meaning "good". Commonly used in replacement of "delicious" Do you want some animal fries from In n out? Bruh, that sounds shmack.Have you tried the animal fries? They're shmack. Shmack by Dalsegnox July 22, 2017 Get the Shmack mug.Get the mug. Buy Now — $25