1) A person who is very stupid (aka retarded) and also a complete bastard
2) a combination of bastard and retard
*often used with complete preceding it*
Edwardo "Hahaha! Ricardo your girl friend is a lesbo!"
* Edwardo picks nose then tries to eat it through ear*
Ricardo to Edmund "Wow Edwardo is a complete bast-tard!
Wow my teacher is bast-tard!
My bitch sucked me so bad I called her a bast-tard!