The famous Windows XP Key leaked before it was released beginning with "FCKGW" could have the acronym "F### Genuine Windows".
I used that key so much back in the XP days that I had it memorised, I didn't need to copy/paste or read it to enter it, straight from the head to the PC lol
Lmao, I remembered it as well. I kept using it until WGA came out and blacked my desktop with nagware. Now I have keys that read as genuine as well as keys from my MSDN.