As one of the world's lesser known, yet great acronyms, this is a one-word
abbreviation for the more lengthy
instruction, 'Fuck Off Bastard, You're A Cunt'. However, acronyms have been entered into the Oxford-English dictionary dating back as far as
William Shakespeare and therefore. it is accepted that as one word, FOBYAC may still be accepted.
See links to fuck, bastard and cunt.
When establishing that one is in the presence of a person who is somewhat, (grossly), disliked, they may be invited to "FOBYAC". In this manner, the word may be used in the clear
satisfaction of knowing that as few will
understand it's true meaning, no street fight wil ensue. Indeed, walking up to an officer of the law, a copper, police officer, or even an immigration official, (see wanker), one can use the word and be faced merely with a confused look. In this respect, as opposed to better known and wider
understood and employed expletives, complete safety for one's person will ensue.