You might never read this, and you've probably found this out by now, but Lolita refers to the title character of the book, Lolita, by Vladimir Nobokov. It's about a middle aged guy who's in love with a very young girl (can't remember the exact age, it's either early teens or preteens, but they made her older in the film) named (wait for it) Lolita... so the term refers to someone seductive, but who would generally be considered too young to be as such (usually a girl, but I guess it's being used for a guy in this case..). ^^;;