Reged: 02/28/06
Posts: 641
Loc: Sheffield, England
Not a dork! Think they're more of a British thing actually...
It's just the bride-to-be going out for a night out or spa visit or something with all her friends - sort of her last night out as a single! (Traditionally with the 'L plates' hanging on her person, like the ones you have on your car when you're learning to drive!)
Same as a stag do that a groom-to-be would have. I think there is a US version of the name, but can't think of it at the moment... Anyone?