A high maintenance girl who, though reasonably attractive, is usually meant to be a space-filler at parties and does not offer social skills or intelligence.
Biddy Girl: Where are all the hot guys at this party? Andrew only invited biddies.
Hipster Girl: I would not be caught dead at that party. It's only going to be bros and biddies.
Hipster Girl: I would not be caught dead at that party. It's only going to be bros and biddies.
by Cec March 30, 2008

by illstandbyyou December 10, 2011

by Ich September 30, 2003

When a hot or attractive woman is around you or your friends and you do not want to go out and say in front of her to your buddy HEY LOOK A HOT GIRL! simply say biddy and a direction and thus everyone knows
*at an American Eagle store or some other bitch ass place*
(Hot girl walks by)
Me to Jim: biddy 3 O'Clock
(Hot girl walks by)
Me to Jim: biddy 3 O'Clock
by Tom Cahue March 7, 2007

In the UK a biddy (or, more commonly, an old biddy) is a person (particularly a woman) of around 55 or above.
by cactuscat September 15, 2006

Describes a typical sorority girl with little apparent intelligence who says "like" and "oh my god" a lot and dresses in polo shirts, mini skirts & uggs.
Look at all that biddy in her letters. Doesn't she care about anything besides her looks and pop culture?
by MarianSch June 23, 2008

I did a biddy last night.
by Chizzle My Nizzle January 15, 2004
