A fucking idiot whom can not seem to do anything right

means you are a fucking retard. Basically really really stupid

combination of "fucking retard". You would often call robert this

(noun) A contraction of fuck and retard.

Used for those extra special moments when calling someone a fucking retard just isn't quite enough.

Fuck:

verb1.have sex with (someone).2.ruin or damage (something).

Tard: noun. offensive. A person who has a mental disability (often used as a general term of abuse).

Fucktard is the shorting of the slur Ret@a#d with the word Fuck in front of it, commonly used as and insult. People who use it either do not care and like to use the r-slur and others who use it think they are being morality superior by using this instead of the r-word but they are not and and need to stop using any variation of the word "tard".

A fucking retard.
Or
A retarded fucker.

Or

Fucked up retard.