suck the ulcers and piles of another person—play the lickboot ❍ 此人对权贵～，极尽阿谀逢迎之能事。This fellow licked the bigwigs’shoes and flattered them right and left.
吮痈舐痔shǔn yōnɡ shì zhì
吮：吮吸；痈：指一种化脓的疮；舐：舔。用嘴吸脓包，用舌头舔痔疮。形容巴结权贵的无耻行为。play the lick boot,be boot licker, sycophancy