反眼猴

fǎnyǎnhóu ㄈㄢˇ ㄧㄢˇ ㄏㄡˊ

    • fickle person who turns hostile and disowns old friends

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
turn-eye monkey
Meaning
A fickle person who suddenly turns hostile and refuses to recognise old friends. Critical, colloquial.

Sources