客不壓主

Simplified: 客不压主

kèbùyāzhǔ ㄎㄜˋ ㄅㄨˋ ㄧㄚ ㄓㄨˇ

    • a guest should defer to the host and not outshine them

Character by character

Saying俗语俗語

Proverb谚语諺語 · Rarely used now

Literally
the guest does not press down on the host
Meaning
A guest should defer to and respect the host and not take over or outshine them. Used as advice on etiquette.

Sources