put on airs

• Comportarse de manera pretenciosa, arrogante o snob, a menudo exagerando la propia importancia o refinamiento.

To behave in a pretentious, superior, or snobbish manner, often by exaggerating one's importance or sophistication.

1. Act superior or pretentiousB2informal

   To behave in a way that suggests one is more important or sophisticated than one really is.

   darse aires

   • She always puts on airs when she visits her hometown.
   • He puts on airs just because he got a promotion.
   • Don't put on airs with me; I know you're just like everyone else.