Sexy is used to describe something (clothes, music, words, you name it) that turns people on sexually.
People who are sexy are attractive in a way that makes other people interested in them romantically or sexually. For teachers and parents, there are often problems with kids — especially girls — who want to dress in a sexy way at a young age. But looking sexy before you're ready for sex is usually not a good idea. Today the word sexy gets thrown around a lot — cakes are sexy, wallpaper is sexy, flip-flops are sexy...
