slang term for someone who is knowledgeable or "in the know"

a term describing someone as trendy or stylish

फैशनेबल या स्टाइलिश व्यक्ति

English Usage: He always wears hep outfits that turn heads.

Hindi Usage: वह हमेशा ऐसे फैशनेबल कपड़े पहनता है जो सबका ध्यान खींचते हैं।