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Bullennial

A slightly derogatory slang term for most “millennials” who have huge egos and think they know everything but don’t display much intellect, so when they start taking you can tell they’re really full of bullshit.
My friend Sorren was born in 1994 and is adamant that Peru is the capital of Brazil! He’s such a frustrating Bullennial! He can’t even admit he’s wrong when we look it up on Google and show him!
Bullennial by CK Elizabeth August 30, 2019
Related Words

billennial 

These are the next generation of Millennial Billionaires who will come to define the entrepreneurial world from here on.
Evan Speigel, founder of Snapchat made his fortune in the Multimedia Messaging App and came to be known as the First set of new age Billennial entrepreneurs.
billennial by AgentPDC June 16, 2020

Boolennial 

Boomers and millennials: the most entitled generations and the ruin everything good for Gen X and Gen Z.
Boolennials just expect everyone else to pay for everything while they retire or FIRE.
Boolennial by Severchild May 16, 2023

Boollennial

A person that possess all of the worst characteristics of a boomer and millennial.
Joe Rogan is the dragon and leader of Boollennials and rumored to be the founding father.
Boollennial by bstuckk October 24, 2025