Derponious Maximus Share definition Flag A person or thing of Hellenic or Greek origin doing dumb shit or being the dumb shit to an extreme degree. Wow, look at Greece's derponious maximus economy curve! Derponious Maximus by anonymous July 29, 2021 0 0 Get merch Get the Derponious Maximus mug. Buy Now — $32.95 See more merch