左手交右手

zuǒshǒujiāoyòushǒu
  1. (derogatory) to transfer benefits within the same party or between parties with common interests
  2. to transfer benefits within the same party or between parties with common interests

Wiktionary

Entry Composition

1 左手 zuǒshǒu left hand; left-hand side
2 交 jiāo
  1. to hand over; to deliver; to pay (money); to turn over
  2. to make friends
  3. (of lines) to intersect
  4. variant of 跤 jiāo
3 右手 yòushǒu
  1. right hand
  2. right-hand side