蟻族 [蚁－]

Jyutping ngai5 zuk6
Pinyin yǐ zú

Definitions (CC-CEDICT)
  1. "ant tribe", college graduates who endure cramped living conditions while trying to develop a career
Definitions (Wiktionary)
  1. noun, neologism, slang
    group of low income university graduates who settle for a poverty-level existence in the cities of China