fiddler's fuck 

It is an exclamation of disbelief characterized by the small quantity of a fiddler's fuck.

I would not give a fiddler's fuck if your tongue came notarized.

Or, I don't give a fiddler's fuck how much proof you say you have.

fiddler's fuck by Flagger McCord February 1, 2005

flying fiddlers fuck 

an add on to i dont give a fuck

i dont give a flying fiddlers fuck if its bad week i want sex

flying fiddlers fuck by duff_paddy_69 May 30, 2009