A person who is mentally retarded and tends to make jokes that demonstrate their retardation.
Funtarded person: What if you gave birth to poop?
Normal person: You'reretarded.
Funtarded person: I'm funtarded.
Normal person: ....no.
Funtarded person: You know who's cute?
Normal person: Who.
Funtarded person: Justin Bieber!
Normal person: ...
Funtarded person: I wanna pee on his face.
There is retarded people , then there are fucktarded people . Meaning there is no hope for them they'rejust fucked. Idiotic people.annoying people . A dumbass.
When someone is doing something or acting some annoying way." OMG you are such a fucktard !" Or " Are you fucktarded?"