A hot and/or sexy person (usually a woman).
Alternatively, you can add "Fu" to the end of a description (see below).
Alternative examples from above:
2. Check out the "Glasses-Fu" in aisle two. (Describes a cute/pretty girl wearing glasses.)
3. Dude, I love that "Alterna-Fu" chick in our philosophy class. (Describes a hot emo-type chick.)