I am genuinely curious now about the word "jack off" I think that when used as a noun it should be hyphenated: You're a bastard, a jack-off, and a son-of-a-female dog. And when pluralized it should still be hyphenated: You're all bastards, jack-offs, and son-of-a-bitches.
although, if they are all brothers then they could be "sons of a female dog."
Man, you guys don't get it. I was not trying to pluralize "son of a female dog" correctly. I was trying to have fun with language. I guess I should remember to put smileys next to everything that is not a completely serious pronouncement about life.