PEDANT ALERT:

Cluin contributed "Fuckin'-ay!" I do not know whether he meant 'A' or 'aye'..I have heard this pronounced several ways, and have strong feelings about how it seems to have been corrupted.
   It was originally "fuckin AYE", with aye meaning 'yes', like pirates and other sailors say.....so it meant, "absolutely yes", but someone saw it in print, didn't understand, and started saying A....which has a ring to it, but 'means' very little.

I read that the Canadians even say 'fuckineh'...but...*grin*...

END PEDANT ALERT