玻璃人

bōlirén ㄅㄛ ˙ㄌㄧ ㄖㄣˊ

    • pure-hearted, open person who is easy to understand

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
glass person
Meaning
A person who is pure-hearted and transparent, open and easy to understand. Generally approving.

Sources