When one of your close friends goes as far as calling your mother a two cent bulgarian cum guzziling whore. Also, if the attacker calling your mother such a name has damp hair or a finger nail previously cut you can reverse the verbal attack by saying, "Pleezygozzie"or "Shiggida-wiggada-the nose" either one of these will act as a complete reversal to the argument. A good finishing attack would be to say "you got served" or something similar. Also "You got sizzerved my nizzerved".