挽留太多就成了脸皮太厚
[wăn liú tài duō jiù chéng le liăn pí tài hòu]
Translates as 'too much pleading shows thick skin (refusing to take hints)', expressing a social attitude: when one pleads excessively for something (or someone), especially against polite denials, it might indicate they are not taking the refusal seriously enough or respecting personal boundaries, hence seeming overly pushy.