被人卖了还去数钱

Traditional (Taiwan): 被人賣了還去數錢

bèirénmàileháiqùshǔqián ㄅㄟˋ ㄖㄣˊ ㄇㄞˋ ˙ㄌㄜ ㄏㄞˊ ㄑㄩˋ ㄕㄨˇ ㄑㄧㄢˊ

    • to be betrayed or exploited without realising it

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
be sold by someone and still count the money for them
Meaning
To be betrayed or exploited and not realise it, even feeling pleased. Mocking of someone's naivety.

Sources