抱大腿

bàodàtuǐ
(coll.) to cling to sb influential or famous

CEDICT

colloquial

Entry Composition

1 抱 bào
  1. to hold
  2. to carry (in one's arms)
  3. to hug
  4. to embrace
  5. to surround
  6. to cherish
  7. (coll.) (of clothes) to fit nicely
2 大腿 dàtuǐ thigh