So good looking that the words "beautiful" or "handsome" just
don't give justice to how incredible attractive something
may be.
Or
An amazing feeling that words
alone can't describe the passion you have for something, and the closest word to describing that passion without making it sound dull.
Person 1: Do you
see that blonde, almost
naked chick over there?
Person 2: Yea! She is so sexy!
Person 1: I heard you and your boyfriend made out yesterday in the hot tub.
Person 2: We did! It was steamy and sexy!