GillennialX 

It's when a Generation X population member behaves like ones of the Millennial generation.

David had a meltdown and felt entitled to help over a problem he was having, for a 40-year-old mature man he surely exhibited some GillennialX behavior.

GillennialX by Hixxz68 July 26, 2018

gillennial

Someone who can't decide if they are a millennial or in GenZ. They're not quite as jaded, interested in traveling or wanting a destination weddings like a millennial. They may use social media like TikTok or Snapshot, but not in an excessive, depression-inducing way like GenZers. They were probably born between the years 1994 to 1998.

My friend who is a millennial told me I was in GenZ because I like TikTok. But, maybe I'm more of a gillennial?

gillennial by tash_27 January 2, 2021