山穷水尽

山窮水盡
shānqióngshuǐjìn
  1. mountain and river exhausted (idiom); at the end of the line
  2. nowhere to go

CEDICT

having no more options; being at the end of one's rope; extremely desperate and hopeless

Wiktionary

比喻陷于绝境，穷困之至。《官场现形记．第四七回》：「及至山穷水尽，一无法想，然后定他一个罪名。」《文明小史．第五八回》：「兄弟现在已经是山穷水尽了，苟有一线生路，怎敢冒渎小翁。」也作「水尽山穷」、「水穷山尽」。

重編國語辭典

走投无路而陷入绝境的困境

維基詞典

Entry Composition

1 山 shān (coll.) small bundle of straw for silkworms to spin cocoons on

classifier: 座
2 穷 qióng
  1. poor
  2. destitute
  3. to use up
  4. to exhaust
  5. thoroughly
  6. extremely
  7. (coll.) persistently and pointlessly
3 水 shuǐ
  1. water
  2. (after a name) ... River
  3. to swim (used mostly in 会水 huìshuǐ and 水性 shuǐxìng)
  4. (coll.) lacking in substance; shoddy
  5. (bound form) additional cost; extra income
  6. classifier for washings of a garment
4 尽 jìn
  1. to use up
  2. to exhaust
  3. to end
  4. to finish
  5. to the utmost
  6. exhausted
  7. finished
  8. to the limit (of sth)
  9. all
  10. entirely

Related entries

无路可走 wúlùkězǒu
  1. nowhere to go
  2. at the end of one's tether
最危险的猎物是无路可走的那种。

Cornered prey is the most dangerous kind.

Source: Tatoeba

无路可逃 wúlùkětáo
  1. no way out
  2. nowhere to go
  3. trapped beyond hope of rescue
  4. painted into a corner