A twenty-something who still acts like a teenager: still lives at home, parties every weekend, drinks energy drinks mixed with alcohol (see: FourLoko), thinks excessively about themselves.
Also see: twenteen
Also see: twenteen
The cast members of the Jersey Shore are total twenteenagers. I just want to punch them all in their collective faces.
by Cap'n Haddock December 19, 2010
Get the twenteenagermug. Someone in their twenties still behaving as in their teens or who hasn’t let go of their teenage years.
by virgule August 23, 2025
Get the Twenteenagermug.