Deinhart Share definition Flag German for "your hard", implicating one's erect penis. Deinhart is a very attractive person, who could seduce any man just by their looks. Person 1:"Oh boy, here comes the Deinhart." Person 2: "I'm so fucking hard for him!" Deinhart by random_nesss March 10, 2021 0 0 Get merch Get the Deinhart mug. Buy Now — $32.95 See more merch