Cher Horowitz is the main character in Clueless. She isn't the smartest girl in school... but she is the prettiest and trendiest. That's really all that matters. Cher is also saving herself for a more mature boyfriend.
Tai: Do you think she's pretty? Cher: No, she's a full-on Monet. Tai: What's a monet? Cher: It's like a painting, see? From far away, it's OK, but up close, it's a big old mess. Let's ask a guy. Christian, what do you think of Amber? Christian: Hagsville. Cher: See?