Street Retard
A person of any age that epicly fails at navigating in public places, from inside QuickCheck stores to cities like NYC and Paris. In some cases, the "street retard" might head in a way different direction you point them to (as in symptoms of being directionally challenged or walk passed the Walmart they were looking for - while walking.
Michal: "Did you see Filip just walk past the frozen foods aisle?"
Dominik: "Hell yeah, he is such a street retard..."
Dominik: "Hell yeah, he is such a street retard..."