Twenteenth 

In America a 20 year old cannot do anything different then a 19 year old.
Twenteenth is the age between 19 and 21.
Twenteenth is not a teenager yet still is.

She got excited for her 20th birthday then realized it is nothing more then her Twenteenth Birthday.

Twenteenth by TheMoreYouBro March 18, 2023

twenteen 

Essentially a replacement word for Twenty, however, this is more of a characteristic of defining the new "kidult" age. Which is the age from 18 - 25, where people are staying at home longer, in order to obtain an education without moving out. Also used for people who continue to be a teenager well after their age has exceded the teenage years. This covers the ages from 20, through to 29 (twenteen-nine), as the age of 30 becomes thirteen, which is going backwards.

I am currently twenteen (20) years of age. Actually, I am currently twenteen-two years of age. But that is so not the point.

twenteen by Justin Krueger July 1, 2005

twenteen 

The age between nineteen and twenty-one. Twenteen is used when the birthday boy/ birthday girl is not excited about no longer being a teenager and feel like if they mask the age behind a false definition, the pain of getting old will lessen.

Much Younger Best Friend: "Hey Jordan, how old are you turning today?"
The Birthday Boy: "I'm only twenteen! Just a youngin'! I'm not ready to be old yet."

twenteen by Gordon Tusker-Deepfreeze August 5, 2008

Twenteen 

The age defined by a person who can't move on from their teen years. Mostly used by people who are in denial that they are actually twenty.

Syahmi turned twenteen three on 12th October 2014.

Twenteen by AKZMN October 12, 2014

twenteens 

This current decade which spans from 2010 (twenty-ten) to 2019 (twenty-nineteen).

Twen (from twenty) plus teen.

It includes: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 and finishing with 2019.

The movie Avatar is set to become one of the highest grossing titles of the twenteens.

twenteens by boc choi July 18, 2011

twenteenager 

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

The cast members of the Jersey Shore are total twenteenagers. I just want to punch them all in their collective faces.

twenteenager by Cap'n Haddock December 19, 2010

Twentieth Century 

1. The ~ Limited, an extinct luxury train from New York to Chicago.
2. Hell on Earth, 1900-1999, or 1901-2000, for would-be purists.

In the Twentieth Century fools prated of progress, and mass murder was an athletic event.

Twentieth Century by Octopod November 8, 2003