The act of sticking your finger in your ass and pulling it out to find cum and nutty filled shit on your fingers. Then proceeding to stick them in your partners mouth
My dad gave me a raging new york nutter butter last night. or my grandmothers new york nutter butter taste the best
Da result of a lazy-a** teenager's being made to do his share of da housework by hand-churning cream, and shedding copious tears about having to perform said boring/arduous task.
Once motorized butter-making machinery was invented, da term "naturally salted butter" referred to simply sprinkling on da crystally-white stuff by hand.