另外，这是我的家事，你最好与此撇清关系。

Besides, this is my family matter. You should stay out of it.

他的女友不想和他同居，他们为这件事吵架以后，他回到家里砍断了自己的雄风。很显然，他希望和女人完全撇清关系。

After an argument with his girlfriend over her not moving in with him, he returned home and there cut off his manhood, apparently as he wished to be done with women entirely.