Millennial
A person born between 1981 and 1996
Example
I still have no idea whether or not I'm a millennial
Honey, you eat way too much avocado toast to not be a millennial

Related Slang
Boomer | A person born between 1946 and 1964 |
Gen Zer | A person born between 1997 and 2012 |
Gen Xer | A person born between 1965 and 1980 |
OK Boomer | Whatever, old person |
OK Millennial | Whatever, young person |
Go viral | To become popular on the Internet |
Meme | A piece of media that spreads via the Internet |
Tweet | Twitter post |
Don't @ me | Don't mention me in your tweets |
Zoomer | A person born between 1997 and 2012 |
The generation of people born between 1981 and 1996 are commonly referred to as millennials. Sometimes also referred to as members of Generation Y, these people came of age around the turn of the millennium (aka the year 2000).
Millennials are the generation that grew up during the rise of the Internet and the introduction of social media and smart devices. As such, millennials are typically more online and tech-savvy than previous generations. (They are not, however, as online and tech-savvy as members of Generation Z.) As millennials grew to adulthood and began entering the workforce, they weathered both the Great Recession and the COVID-19 pandemic, both of which hindered their economic advancement.
Because millennials hold different beliefs and do not have as much disposable income as previous generations, they are sometimes blamed for the "demise" of items that boomers considered to be cultural touchstones. Things millennials have "ruined" or "destroyed" include: