An oblivious, ignorant, foolish girl. One who does not consider others.
Girl #1: "I only care about a few people in the world!!!" evil cackle.

Girl #2: OMG, she just pulled a 'Kelsey.'
by The Alarmer February 06, 2013
A drunk moose who frequently gets stuck in a tree.
TROLOL look at that Kelsey.
by Non-Drunk Moose October 02, 2011
A New Yorker, quiet, smart, cute, about 5'6" in height, with gorgeous red hair, great style, and two of the prettiest blue eyes in the world.
You know that book "20,000 Leagues Under The Sea" by Jules Verne?

Ya, why?

He wrote that about me because if Kelsey's league was the surface of the ocean, I'd be 20,000 leagues under the sea!
by fivehours April 15, 2010
A girl who smells like cat litter
Boy: Hey whats that smell?
Girl: Oh, it's just Kelsey.
by Spider-Girl December 16, 2013
Total cutie, thinks you are a little girl if you dont do what she wants. Is always fun to be around, unless she doesnt talk at all..... ever.. even during awkward silences... Once you get used to her awkwardness you will learn to get along with her and it wont be too awkward. She seems to act hyper and crazy with everyone except you so dont get your hopes up. other than that kelsey is a fine specimen of a women and is sure to brighten up your day .
Person 1: Dude did you just hear that horrible noise?
Person 2: Yeah i know its piercing its gotta be a "kelsey."
by icreepongirls May 05, 2011
A name for a girl who lurks facebook. Not only will she spend hours liking every one of your posts, she will know things about you that you don't even know about yourself.
Damn, that girl is a kelsey. She's been lurking facebook all day!
by Shelby (not a lurker) March 29, 2011
known as the Flushing whore. Askanyone from Flushing and they will say...I heard she's Fucked everyone at the school including middle schoolers, or I hear she's pregnant again...oh wait she's prob lying like usual.
dude you know Kelsey r?

yeah dude, she's Fucked my older and younger brother..she nasty!
by yourface2100 May 10, 2012

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