A fork of Rural Dictionary
1) An expression proclaiming an extreme amount of apathy; especially regarding critics. 2) A negative amount of currency, usually an amount lost or owed.
Ex 1: Woman: I would never date you because your car is not my type. Man: I don't give A Fat Lesbian's Ass who you'd date, just roll over. Ex 2: Hal: "How much do you still owe your landlord?" Preston: "A Fat Lesbian's Ass!"