If you have not yet heard of this new word then you are behind the times and fortunate, in my opinion.
I first saw this word in print, wondering what the heck it was. It is all over the Twitter scene, in every tweet, comment, photo. Then, I heard it in my house, vibrating off the walls. Sometimes it was pronounced in valley girl style, others in drooling admiration, usually as some hot, teen hunk flashed his abs across the television screen. That is because I have a house full of Teenage girls. My son, at age twelve, has not entered the social media scene or started using slang.........yet.
So what is it? Noun, verb, adjective? Apparently it can be used any way you desire.