肉袒

ròutǎn
to make a humble apology (formal writing)

CEDICT

  1. (literary) to be partially naked (chiefly baring the arms up to the shoulders or the entire upper body, a gesture of humility)
  2. to be partially naked (chiefly baring the arms up to the shoulders or the entire upper body, a gesture of humility)

Wiktionary

原指脫去上衣。常用來表示請罪或投降。

重編國語辭典

Entry Composition

1 肉 ròu
  1. meat
  2. flesh
  3. pulp (of a fruit)
  4. (coll.) (of a fruit) squashy
  5. (of a person) flabby
  6. irresolute
  7. Kangxi radical 130
=2 袒 tǎn to bare
=2 袒 tǎn old variant of 袒 tǎn