熟語“have a cow”は、 “get angry” 「腹を立てる」「取り乱す」 の慣用表現。因みに「牛飼い」は、“cattleman”“cattle owner”。「牛」の集合名詞は“cattle”だったねェ。 “My father is going to have a cow if I tell him I've crashed his car against the …