Lolita is Victorian and Rococo inspired fashion. The style was born in Japan somewhere in the 1970's. It is unsure exactly how and when Lolita came to be. The fashion is focused on appearing "beautiful," "cute," and "sweet," rather then "hot" or "sexy."
There are "rules" and guidelines that are too be fallowed to qualify an outfit as Lolita. Rules such as a bell shaped skirt, a pair of knee high socks, headwear, etc... To learn more about the anatomy of a Lolita outfit you can visit this link http://www.lolitafashion.org/anatomy.php
There are many different styles and sub-styles of Lolita. Some of the most popular of the styles are Classical, Goth, and Sweet.
The Word "Lolita"
If you go to Google now a day and look up the word "lolita" you're bound to find two things...
1) "Lolita" a novel written by Vladimir Nabokov published in 1955. The story is famous for it's controversial subject: A middle-aged Humbery, who becomes obsessed and sexually involved with a 12-year-old girl named Dolores Haze (also known as Dolly, Lolita, Lola, Lo and L).2) Or Lolita the fashion. "In Lolita fashion, it is generally accepted that "Lolita" does not refer to Vladimir Nabokov's famous novel. In the context of fashion, the term 'Lolita' does not relate to sex. The usage of the word may also be considered wasei-eigo..." stated in Wikipedia.