1 definition by Kiki O'Connell
A seriously fucking annoying teenage girl ages 12-16. Kirby's can usually be spotted in skin tight, ass-revealing yoga pants, and shirts that use the exact same amount of material as a bra. A Kirby's natural habitat is in the middle of a circle of horny guys in tank tops. Kirby's usually like to spend their days hugging every guy they see, uploading photos of them with obvious cleavage, and stealing the boyfriends of her best friends. Kirby's should be swiftly avoided by all of man-kind.
by Kiki O'Connell June 28, 2012