Refers to someone who puts on airs, acts pretentiously, or is overly concerned with appearances and style.
He's a snob, always talking about high-class things.
I'm fed up with that affected person's attitude.
気取り屋 focuses on someone who puts on airs or acts affectedly, while 見栄っ張り emphasizes trying to look better or richer than one really is.
Compound of 気取り (きどり, 'affectation, putting on airs', from 気取る) and 屋 (や, suffix for a person with a certain trait or occupation).