Seems like teens have their own language, I like to refer to it as slanguage. Here's a few things one might hear from teens now a days.
Dope - Means cool or awesome.
Bowen- A person who often stinks, possibly with hygene issues. Derived from a creature that is known to inhabit sewage and have a frightening odor because it uses its own feces to disguise itself.
Butt hurt- to be hypersensitive or over offended over a prank or joke. (my daughter uses this one all the time)
Hardcore - Means something is intense. Generally said about something that is a good experience, but also used when something bad is happening to a friend.
all up in my grill- the act of being in someone's face.
hella- used in conjunction with another word as an intensifier. As if to say “very.” Derived from “A hell of a lot of . . .” Examples include: hella-cool, hella-stupid, hella-crazy, or hella-funny.
bamf- Acronym for “Bad Ass Mutha F***er."
tool- someone that is a geek or nerd; one who is socialy inept and does not fit it.
idk- short for “I don’t know”
wikijism- A term to describe any journalism, reports or writing that uses Wikipedia as it's only source.
my bad- a phrase said to admit guilt in a situation.
beatin' dem cakes- having sex. "I got with Juana and was beatin’ dem cakes like Betty Crocker!"