Fucking Retard, someone who is far beyond a dumbass, someone who has done something so rediculously stupid or braindead that words can scarcely define.
Phil, you're a fucktard!
That phil guy is a total fucktard.
n.
(FUHK-tahrd)
A word used to express the sentiments of calling someone a 'retard' by one who also feels the need to swear at the same time.
Unsurprisingly, the people most likely to use this word are also the people most accurately described by it.