In Detroit, Whatupdoe is slang for what's up/what's going on? Whatupdoe is the universal Detroit greeting. Depending on tone and inflection the meaning can also range from giving someone a warm greeting to inviting them a scuffle. But no matter where you are in the world if you see someone in an old english D hat and shout "Whatupdoe" you're more than likely to get a "Whatupdoe" in return.
