SLANG

"Slang is very informal language which is often used by young people. It's hard to keep up to date with slang, but this article will help you learn a few words that your teacher may not know!"...

http://learnenglishteens.britishcouncil.org/english-skills-practice/life-uk/slang

Bueno, yo ya lo he leído, así que ¡me las se!