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 big nosed bitchy blonde girl that closely resembles the character of Pinnochio. Extremely clingy and stalks her previous boyfriend who doesn't want her because she is rumored to have a penis. Kelsey is also another expression meaning... when you take a shit and the water splashes and hits the bottom off your ass thus covering your ass in toilet water. Also called taking a kelsey.
Dude i got my ass all wet from taking a kelsey.
Seriously, I always see her nose sticking out of the bushes when she follows me home. She is such a kelsey.
by Peterpan152 February 19, 2011
Kelsey is the dirtiest swear word in the English language. A Kelsey is a morally corrupt thief and has very few brain cells. This is because the remedial Kelsey snorts, smokes, shoots up, or pops them all away. The sluttiest of all females, a Kelsey has lost count of her bedpost notches. Kelseys are known to be dramatic, and they like to distort a situation and spread vicious rumors when you have been put on her shit list for trying to help her. Kelseys are known to be users and abusers and they can be the worst mothers in the world. One of these broads uses the crocodile tears to lure you in, then when you have served your purpose, she will warp your time spent with her and use it as sob story for her next victim.
Guy: Dude, why do you look so angry?

Dude: I felt bad for this girl I met because she "had been treated so badly". So, I took her in and fed her, only to have her steal from me and throw herself on the floor and yell "Why did you hit me?" when I confronted her in the most civil way possible. When I told her psychotic ass to leave, she started making up stories about how badly I treated her.

Guy: Dude, it sounds like you got Kelsey'd.
by Lovely Red December 13, 2010
(n) :a kelsey is a being of strong mannerism. kelsey's are scrappy and take no shit off anyone, they will fight on sandbars, attack boyfriends, and yell furiously if provoked. kelsey's have been known to carry herpies, although not all kelsey's do.
like omg that redneck girl who's top fell off... she's such a kelsey.

omg... you hooked up with like 7 guys last night- you kelsey.
by Mister Pickle September 23, 2010
a girl that is so hott she makes your eyes melt. has one liners that will keep you laughing for days. when he hair blows in the breeze everyone can't help but stop in thier tracks and stare. is a hard worker and enjoys reading books about Obamas family. likes her windows open all the time, and hates light when she is trying to sleep. she is a dirty hoe that swears up a storm. she also dresses to impress the males. watch out world kelsey is here and taking names!
Woah I met this girl last night at the Ridge...she was so hott my eyes melted!

You must of met a Kelsey.

No, I think I must of had to many jello shots.

Whatever!
by mballer1990 September 20, 2009
The freaking sweetest girl ever, but most dont know it. One tends to have a shortage of breathe when around such a stunning figure. It's been said to get lost in her eyes. She is a great friend, who will do anything for those she loves. When a Kelsey is in love with you, you will definitely know it. Always tell her you love her if you do, and never let a Kelsey go.
Kelsey.
by Anonymous! :) December 22, 2008
A common boring name. Normally if you meet one. Their bitchy, nagging, probably have a huge nose, nasty hair, cheat on their boyfriend(s) with atleast 100+ guys, and two faced. Stay away from Kelsey's.
Hey did you see Kelsey at that party with him?
No, but I just seen her with a different guy.
by Thatguy18 September 07, 2010
Commonly dwells under bridges and sneaks out to troll others. Their mating call includes the shouting of the word MIO, YUI ect. to attract the young Alexs from their bridges to lurk together. If you find one approach with caution because it may get violent easily, and if it does appear to become aggressive simply sing the following lyrics; Always, i wanna be wiff you! and that will keep them at bay..for now..
1: What is that??...what...is that?? ITS A KELSEY RUNN!!!
2: Do you know a Canadian? Oh yeah that Kelsey hoe!
by Nirosis March 01, 2010

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