What the F*$*&!
In ancient England a person could not have sex unless they had consent of the King (unless they were in the Royal Family). When anyone wanted to have a baby, they got consent of the King and the King gave them a placard that they hung on their door while they were having sex. The placard read F.U.C.K. (Fornication Under Consent of the King). Now you know where that word came from.
