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".