1) n. A person between the
ages of 12-20.
2) a. To perform an act or to
behave in a manner most commonly associated with
teenagers.
Adding a definition to this site was a very teenage thing to do.
Getting a
mohawk would be a very teenage thing to do.
Getting drunk off 6 cans of beer, crashing your car, then crying when the police
suspend your
licence would be a very teenage thing to do.