Fard is the feeling you get when you fart so hard you're ball skin vibrates uncomfortably. Considered a combination of "fart" and "nards"
Will was so engaged in his macrame that he did not adjust his buttocks prior to launching a massive fart. He was unnerved as the gaseous mass pushed past his nard bag creating a distinct "fard" sensation.
While "retard" is not a socially acceptable term, when used, it is normally not meant to demean actual mentally handicapped people, it is usually meant to refer to "functioning" mentally handicapped people. So, "functioning retards" are also known as "fards".
The idiot my boss hired to handle the department budget is a complete fard.