baan6 lou5 sing2扮老醒

Jyutpingbaan6 lou5 sing2
Yalebaahn lóuh síng

Definition

To act as if one is very smart and knows it all.

colloquialpeopleemotion

How it's used

This expression carries a strong negative connotation of arrogance and condescension. It is specifically used to describe someone who pretends to be an expert or gives unsolicited advice to show off their perceived superiority. Unlike simply being smart, this implies the person is actually lacking knowledge or is being insufferable in their delivery.

Examples

He is always acting like a know-it-all, it is really annoying.
Don't act like a know-it-all, you don't even know how this works.

Common phrases

a person who acts like a know-it-all

Common mistake

Do not confuse this with simply being smart or knowledgeable. It is strictly used to criticize someone's attitude, so using it to describe a genuine expert who is being helpful would be offensive.

Grammar color guide

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