Numpty Fuck
A complete idiot, a pillock, a drongo, some-one who has no idea.
I've told you a dozen times how to do it, you are a bloody numpty fuck !
Fuck Numpty
Describes one who shows equal levels of sheer ignorance, annoyance, and raging stupidity at all fucking times.
People who have one too many shots of tequila can be described as a FUCK NUMPTY