雙飛

双飞
shuāngfēi
  1. flying in pairs
  2. close union as husband and wife
  3. round-trip flight
  4. (slang) threesome

CEDICT

slang

Entry Composition

1 雙 shuāng
  1. two
  2. double
  3. pair
  4. both
  5. even (number)
2 飛 fēi to fly