Green’s Dictionary of Slang

(orig. US) a comb. form for anything applicable to or enjoyed by teenagers, e.g. teenflick, teenzine, a magazine for teenagers.

1961		H. Ellison Rockabilly (1963) 52: These teen-idols.
1969		N. Cohn Awopbop. (1970) 17: All you had to do was label something Teen and they had to have it.
1976		M. Braly False Starts 174: Rollie had weak, red-rimmed eyes which he sheltered behind green-tinted teentimers.
1989		(con. 1982–6) T. Williams Cocaine Kids (1990) 104: For the teen dealer, staying on top requires handling often unstable personal relationships.
1999		Guardian G2 15 June 17: The twin musical behemoths of teen-pop.
1999		Guardian Guide 12–18 June 21: A teen-movie re-make.
2000		Guardian Rev. 21 Jan. 22: Mixing bits of original text [...] with teenspeak.
2003		K. Cage Gayle 98/2: teen queen n. man who likes having sex with teenagers.