Four elbows
Four elbows, Chinese idiom, Pinyin is B ì y ǒ us ì zh ǒ u, metaphor extraordinary appearance. It comes from body category in Volume 2 of youxueqionglin.
Idiom source "youxueqionglin · Volume 2 · body type": there are three leaks in the ear, the odd shape of Dayu, four elbows in the arm, and the variant of soup.
Four elbows
to have nothing to do with a thing - xiù shǒu páng guān
every house deserves a rank of nobility -- there are wise men everywhere - bǐ hù kě fēng
do a discreditable thing secretly - àn shì qī xīn