末位淘汰

mòwèitáotài
  1. sacking the worst-performing employee
  2. elimination of the worst-performing contestant

CEDICT

Entry Composition

1 末位 mòwèi
  1. (literary) the last (and most inferior) seat
  2. the last (and most inferior) seat
2 淘汰 táotài
  1. to wash out
  2. (fig.) to cull
  3. to weed out
  4. to eliminate
  5. to die out
  6. to phase out