吃土

chītǔ
(neologism c. 2015) (slang) (used jokingly) to live on dirt (typically because one has spent all one's money on consumer items)

CEDICT

neologism slang

Entry Composition

=1 吃 chī
  1. to eat; to consume
  2. to eat at (a cafeteria etc)
  3. to eradicate; to destroy
  4. to absorb
  5. to suffer (shock, injury, defeat etc)
=1 吃 chī variant of 吃 chī
2 土 tǔ
  1. earth
  2. dust
  3. clay
  4. local
  5. indigenous
  6. crude opium
  7. unsophisticated
  8. one of the eight categories of ancient musical instruments 八音 bāyīn