"Sarah Palin knows that it's okay to call someone a retard if like rush you clearly don't mean it which is why we should all come to her defense and say: Sarah Palin is a fucking retard," Colbert quipped.
When somebody does something so idiotic, in the greatest of ways, what was done was so stupid, there is no comparison in known history, to say someone else did something more idiotic.
Doctor: "I've seen a lot of guys hurt themselves in stupid ways in my day, but yours takes the retard cake!"
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..."
The kind of people who say or make stupid nicknames for political figures and think they are actually funny.
Example: Shillary, Trudope, Drumpf, Obama bin Laden, Libratard, Cuckservative
Person 1: Man i can't wait for Drumpf to be impeached.
Person 2: Shut the fuck up you political retard!
Person A: Did you hear what Trudope said to a veteran that lost his leg in Afghanistan?
Person B: fuck off with that Trudope shit you political retard. Use their proper fucking name!