noun
Refers to someone who puts on airs, acts pretentiously, or is overly concerned with appearances and style.
彼は気取り屋で、いつも高級な話ばかりしている。
He's a snob, always talking about high-class things.
あの気取り屋の態度にはうんざりだ。
I'm fed up with that affected person's attitude.
スノッブ is a direct loanword for 'snob', often used in more modern or Western contexts, while 気取り屋 is a native Japanese term with a slightly more traditional feel.
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).