挟泰山超北海
xié​tài​shān​chāo​běi​hǎi

an impossibility

  1. 挟 挾 xié
    to hold under the arm
    To hold or carry something tucked under the armpit; to clasp under the arm.
  2. 泰山 tài​shān
    Mount Tai
    Mount Tai in Shandong province, the eastern peak of the 五岳 wǔ​yuè (Five Sacred Mountains)
  3. 超 chāo
    to jump over
    (literary) To leap over or jump onto something
  4. 北海 běi​hǎi
    northern sea
    (mythology) the legendary or fictional sea of the far north, as mentioned in works like Journey to the West