Trendkid
A Trendkid is a person or a child/kid that picks up trends and things that are popular.
"Hey! You're a Trendkid."
"No, I'm not, bro."
"Yes you are, you like Squid Game, Fidgets, Encanto, and whatever else is popular right now!"
"No, I'm not, bro."
"Yes you are, you like Squid Game, Fidgets, Encanto, and whatever else is popular right now!"