know one's ass from a hole in the ground

短语

词形变化

knew one's ass from a hole in the ground knowing one's ass from a hole in the ground known one's ass from a hole in the ground knows one's ass from a hole in the ground 三单 knows one's ass from a hole in the ground knowing one's ass from a hole in the ground 现在分词 knew one's ass from a hole in the ground 过去式 known one's ass from a hole in the ground 过去式 known one's ass from a hole in the ground 过去分词

别名

know the difference between one's ass and a hole in the ground

释义与例句

v.
  1. 1.

    To have an adequate level of knowledge or skill; to understand what one is doing or talking about.

    习语 粗俗