吮せん癰よう舐し痔じ

Meanings

currying favor; brown-nosing; bootlicking

rare term

Rare, literary expression for shamelessly ingratiating oneself with a superior. The literal meaning is 'sucking pus from carbuncles and licking hemorrhoids', describing extreme sycophancy.

「吮せん癰よう舐し痔じ」とは、上じょう司しにこびへつらう醜みにくい行こう為いを指さす故こ事じ成せい語ごだ。
The phrase 吮癰舐痔 is a classical idiom that refers to the ugly act of fawning over one's boss.