The closest you can get to cursing without actually cursing. Derogatory term for almost anything. Doesn't apply to certain breeds of dogs.
Jon: Did you hear Kelly say father mocker in math today? I thought Mr. Keats was going to explode!
Freida: Yah, but everyone knows Mr. Keats is an ass.
Jon: Yah, he is.
My favorite non-swear word that really isn't one
He`s a real "Father Mocker" that Sean Avery