look up any word, like dirty sanchez:
 
1.
A word which can be used to describe 30-somethings who still have not matured past their teens.

They likely collect comic books, watch cartoons, and shop for themselves in the toy aisles.

30Teens are also likely to shop regularly at Hot Topic, be vehement members of Team Edward or Team Jacob, and text obsessively.
Did you see Emily's mom at the Twilight premiere?!? She's sooo 30Teen.
by iCritter January 16, 2009