How is “under age” used?

In Beautiful Thing (1996), one line is: “You, out! You're under-age.”

Which movie is “under age” from?

The clip at the top of this page is from Beautiful Thing (1996).

Modismo

not legally old enough to do a particular thing

Se oye en 10 películas

not legally old enough to do a particular thing
It is illegal to sell cigarettes to children who are under age.

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

You, out! You're under-age.

En 8 películas · n.º 1