This acronym never was. It is an attempt to make an acronym out of the word FUCK, which origins
date back several centuries and has always had a meaning associated with the sexual act, and this is the reason that it was taboo to include it in printed books; which has only made it more difficult to get to the origin of the word. The word may have been derived from a man named: "John
le Fucker", a scoundrel and a cad, possibly even a sexual predator, as early as 1278. From this, others were compared to this man, i.e.: "You're just another fucker.", and also the reason prostitutes refer to their clients as "Johns". Printed usage of the current spelling dates back to a 15th century poem. The poem, which satirizes the Carmelite friars of Cambridge,
England, called "Flen flyys," written in a mixture of Bastard Latin and Middle
English about some wayward Monks. The relevant line (in B.L.) reads: "Non sunt in celi quia fuccant uuiuys of heli", which translated means: "They the monks are not in
heaven because they fuck the wives of
Ely.". Monks were supposed to be celibate (not engaging in sexual relations), hence the reason they would not be in
heaven as the poem states.
Ely, the town referenced in the poem, is a small town near Cambridge,
England. The best acronym I've ever heard for
F.U.C.K. is shown below:
I was once taught that
F.U.
C.K. stood for "From Understanding Comes Kindness", which is another
way of describing the tender act of lovemaking.