A teenager who goes to a particularly posh private school like Stowe, Francis Holland, Westminster etc. Have a very defined style - girls usually wear dark skinny jeans, with jumpers, chunky jewellery and belts and boys wear jeans with polo shirts or layered Ts. All designer-made, of course. Hang around the King's Road, or sometimes, High St Ken/Notting Hill. Very overprotected and blue their parents' (usually Daddy's) money. Often appear in Tatler (magazine)in the party scene section.
2 (normal) people walking down the Kings Road see a sloaney on their mobile, who then sees their other sloaney friend, rushes up to them and pecks them on the cheeks french-style.