A Lasse

A Lasse is a person born on the border between Millenial and Zoomer years, but with the mindset and bodylanguage of a Boomer. These people drink a lot of Monster Energy drinks and tend to complain a lot about their own generation excluding themselves from it.

Person: All these kids with their tick tocks and their fortnights, it's like they have become a entirely new species!
Friend: Youre being such a Lasse right now.