A nutter fucker is any one who has any sort of sexual attraction and or fantasies involving peanut butter, the use of peanut butter, or anything along those lines. Or referring to anythin or one as peanut butter in a sexual manner.
Person 1: Look at that fine ass jar of peanut butter.
Person 2: Your such a NutterFuckerdude,
Similar to a fluffernutter, but made during sex with peanut butter and semen and fed to the woman.
I blew my load onto the bread, spread some peanut butter on the other slice, put them together and stuffed it in her mouth. She loved that fuckernutter.