Millenial means: Millenials are people who have been torturing humans for less than a thousand years. Michael, The Good Place (in Community Dictionary, added by María Cambil)
What else does Millenial mean?
- This is a misspelling for Millennial. It usually refers to the Millennial generation from early 1980s through mid-to-late 90s. (in Community Dictionary, added by Ceferino Santiago)