when someone texts you something that makes you really angry and you want to say fuck you so you decide to say something much worse.
"so, I might of might not have cheated on you."
"what the fuck did you just say?!"
"I cheated on you..."
"k, bye"
by defiant November 24, 2015
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Another way of saying "just get lost already" while on msn or facebook.
person 1- OMG HI
person 2- hi
person 1- TAGGED YOU ON FB LAWL :D
person 2- yeah

person 1- hows you? i am GREAT lol xxxx
person 2- gd....
person 1- lawl :P
person 2- ...
person 1- omg g2g LOVE YOU LAWL
person 1- :* MUWA lol cyyyaaassssszzzz
person 2- K bye
by the.dude. May 25, 2010
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White girl equivalent of fuck you and all that you stand for. The highest insult possible from a white high school teenager, used only in cases of extreme distaste. Different levels of hate are represented by these variations: K, K Cya, Kaaaaay
"So, I heard you hooked up with my ex"
"Yeah, and..."
"K Bye"
by Young Jock Itch October 8, 2011
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What you say when you end a phone converation.
by Good Naysayer April 27, 2006
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Person A: "I'm gonna bounce."
Person B: "K bye."
by marcinm April 26, 2006
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1. The phrase used after saying something ridiculously random and often hilarious
On a facebook wall: "the car door just attacked me in the face. K bye."
by Randomshroomkid April 24, 2010
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