yigo

A "yigo" is someone who doesn't know what they have and fucks it up.

They are always making bad choices and fuck up their and everyone's lives around them.

They are Yigos...

Also know as Dumb Fucks, Idiots, Fools, Dumb Asses, Dick Heads, etc.
"Reiner is such a yigo. He had a beautiful wife and children at home but had to cheat on them all."

Albert Einstein was thought of as a yigo when he was young, but was really just unique and slightly autistic. He ended up being one of the world's most highly revered scientist's and everybody knows his name.