天上掉馅饼

天上掉餡餅
tiānshàngdiàoxiànbǐng
  1. a meat pie falls from the sky (idiom)
  2. to have something fall into your lap

CEDICT

  1. (figurative) to have something fall into one's lap
  2. to have something fall into one's lap

Wiktionary

Entry Composition

1 天上 tiānshàng the sky; the heavens
2 掉 diào
  1. to fall
  2. to drop
  3. to lag behind
  4. to lose
  5. to go missing
  6. to reduce
  7. fall (in prices)
  8. to lose (value, weight etc)
  9. to wag
  10. to swing
  11. to turn
  12. to change
  13. to exchange
  14. to swap
  15. to show off
  16. to shed (hair)
  17. (used after certain verbs to express completion, fulfillment, removal etc)
3 馅饼 xiànbǐng
  1. meat pie
  2. pie
  3. pasty