young girls who dress in expensive clothing and take lots of photos that they post on facebook. these girls tend to think they're older and cooler than they actually are. usually the age ranking is from 11-14. the mall is their natural habitat.
oh look, little biddy uploaded her new album showing all her facebook friends her fun weekend that no one else cares about
by bammmmf95 August 30, 2010
A biddy is a teenage girl who is fascinated by things such as Myspace, Hollister, digital cameras, shopping malls and most of all: bands. A biddy should never be confused with a prep though as biddys usually are too unpopular and ugly to be mixed into that crowd.
by Jusssstttttt July 10, 2008