19th work Fuck was actually used back during the time of king Hendry the first. His country was becoming to populated so issued a decree the no persons should be allowed to fornicate with out his permission. So with this decree he had his court issued parchments to those he allowed to reproduce. And so it became "Fornication under concent of the king " F.U.C.k
Dean: Dude, Cas and I fucked last night Sam: Dammit Dean. I didn't want to know that.
Dean: To bad. You should've seen what he did with his...
Sam *plugging his ears*: I CAN'T HEAR YOU. BLAH BLAH BLAH