Some of those I've never seen so I suspect they are twitter related since I don't use twitter (or FB)...I guess then...Throwback Thursday...it's used that often that it needs a short form :S
I didn't attempt to take the test (what's the point of guessing to increase the score - you know them or you don't) I knew 3 of 10 and one I learned on Justified - a character's name (YOLO). Guess I need to go back to school or at least move into the 21st century. Second thought: Nah! YMMV