teeners?
Teens i think is a more common slang/shorthand way to refer to people between the ages of 13 and 19?

teener's sound like a compartive (more of teen--with teenest beening the most teen you can get)

and i think that surfer 'argot/slang' whatever you want to call the specalized vocabulary of surfers, is used by surfers of all ages (when talking about surfing)

it might be that teens are more likely to use surfer jargon out side the world of surfing, but that is just a WAG on my part.

my other obsession