When someones really fucking annoying but there so dumb and unobservant that they still think there cool.
However you can also use this word for when someone it reaching like in the game of thrones series the character Ygritte is reaching above her when hooking up with Jon Snow.
Ygret is a fun loving person with a strong personality and they're full of happiness and hope. They are the best thing the world could create so don't lose them.