this is the
expanded abbreviation of the word or slang term which is FUCK.
a long time in England, one would need to get 'consent' from the king, if a couple would ever want to have sex or have a child (this is not including
nobility or
royalty)
man:"Lets have a child"
Woman: "
But first we must get 'fornication under the
consent of
the king.
use that next time you want to swear :D