The belief of sales, marketing, and advertising professionals that the Millennial demographic represents a completely unique group of consumers and as such, entirely new approaches must be adopted. Even if the product you are trying to sell is intended for a completely different demographic, such as Depends Adult diapers.
I tried to explain to the Creative Director that the hipster didn't represent our customer demographic, but she's got a bad case of millennialitis.
A succinct lack of the ability on any person's part to accept responsibility for, find value in or work with any person, place, thing, thought, feeling or circumstance that is not handed to them in an exacting manner to meet their, and only their, specific whim - fancy and/or idiocracy.
All the protesters in the streets losing minds because their candidate lost a fair and lawful election were suffering from their own self imposed millennialism.
A mental disease that causes people born between 1981 and 2001 to believe that they are the smartest, coolest, and most entitled group of people that have ever lived. The disease is usually cured by inevitable doses of reality and eventual maturity.
Jason left a good job because he wanted to be on television and have his own TV reality show about his life. He is suffering from millennialitis.
When a millenial tells you, "It'sactually not about you" in a condascending manner.
The young barrista millenialized the elderly customer by informing him the coffee was made the way the barrista intended, regardless of the customer's desires.
Used to describe a world view that embraces changing values and methods to standardized beliefs. Adjusted lifestyles in favor of socio-economic trends. i.e. telecommuting, environmental preservation, etc.
Boss: Why does she want me to review it on the computer? I always want 3 printed copies before I make corrections for her to fix. Then she needs to reprint 3 more corrected copies.
Coworker: She's a millennialist. Corrections can be made on the computer.