Stop Bullshitting!

Candy is asking her friend, Rudy, why guys swear so much. (C=Candy; R=Rudy)
C : Why do guys swear so much?
R : It adds color and emphasis to language.
C : Bullshit! People who swear don't have class.
R : See? You just said "bullshit."
C : "Bullshit" isn't swearing. It's even in the dictionary.
R : Sure it's swearing.
C : It simply means, "male cow manure."
R : Then why don't you just say "shit?" It's in the dictionary as well.
C : We're just going round in circles. Tell you what. If you stop saying "shit," I'll stop saying "bullshit."
R : Considering they both aren't very nice things to say anyway, that's a deal.

肯蒂正在问她的朋友鲁迪为什么男孩子都那么爱说脏话。
肯蒂:为什么男孩子都那么爱说脏话。
鲁迪:那样可以使语言增加趣味和加强语气。
肯蒂:扯淡!说脏话的人最没水平了。
鲁迪:看吧!你刚说了“扯淡”。
肯蒂:“扯淡”不是脏话。字典里面有这个字呢。
鲁迪:那当然是脏话啰。
肯蒂:它的意思只是“公牛的粪便”。
鲁迪:那你为什么不说“狗屎”就好了?那个字字典里也有。
肯蒂:我们只是在原地打转。我跟你说吧。如果你不再说“狗屎”, 我就不再说“扯淡”了。
鲁迪:就其两者反正都不是好话而论, 一言为定。