Someone who dumps ppl for other ppl that are more popular. most likely a flirt (in a bad way) and usually is a bitch/hoe.
Sum1 random: dude she just told me she didnt want to be my frend anymore.
Another random person: duuudddeee, sheee is a total kelly...
Someone's exposed butt crack. Especially when at least three inches is visible and hairy.
(See plumbers crack.)
Dude! get a belt, you showin your kelly! and by the way, shave a line where your back stops and your butt starts.
A girl who is very much like a ned but doesn't wash and is extremely stupid. They also have a child and sometimes a dog who are about as stupid as them. They also like to thieve pointless things like couches. Never trust Kelly shes the biggest lying scumbag.
Hey your as stupid as kelly and you smell worse.
Kelly, you stupid bitch.
Fuck you kelly
something thats gay; people, geometry, Broke Back Mountain, Elton John, gay aunts, uncles, etc.
Teacher: "Class you have a ten page essay on the south african dung beetle."
Student: " Da** bro thats kelly"
A large turd that clogges the toilet.
There is a Kelly stuck in the tiolet.