know one's head from one's ass

短语

词形变化

knew one's head from one's ass knowing one's head from one's ass known one's head from one's ass knows one's head from one's ass 三单 knows one's head from one's ass knowing one's head from one's ass 现在分词 knew one's head from one's ass 过去式 known one's head from one's ass 过去式 known one's head from one's ass 过去分词

释义与例句

v.
  1. 1.

    Synonym of know one's ass from a hole in the ground.