,black `sheep person regarded as a disgrace or a failure by other members
of his family or group 害群之马: My brother is the black sheep
of the family. 我弟弟是我们家的害群之马.
big shot=big nose =big fish 都有表示大人物的意思。
对于black sheep来说，是先因为有害群体之意，当放在家里就引申为了败家子之意，当放在其他团日里就是害群之马，从语义上来说，害群之马和败家子还是有相当大的区别的。
你这个句子He is a big shot in our little town black.可能多了个black.
