Dance 10, Looks 3
A phrase used to describe the unfortunate occurrence at a poorly lit night club when your partner can drop it like it's hot, but in the glare of natural light turns out to be not so good looking. While this happens to both sexes, it is most unfortunate when it happens to a female. Since many guys don't dance or are rhythmically-challenged, women fall victim to a guy who can shake it.
Girl 1: You danced all night with that guy, what happened?
Girl 2: Dance 10, looks 3! He had some Michael Jackson moves, but unfortunately also had some Michael Jackson looks.