胳膊肘朝外拐

gē bo zhǒu cháo wài guǎi

lit. the elbow turns outward (idiom)

fig. to side with outsiders rather than one's own people

armpit

bo

shoulder

zhǒu

elbow

cháo

abbr. for 朝鮮|朝鲜[Chao2 xian3] Korea

wài

outside

guǎi

variant of 枴|拐[guai3]