Quite literally a slap across the face.
Jesicca: Coming out tonight?
Charlotte: No, I can't arranged something else.
Jessica: k. -signs out.
by ambzzsimm December 08, 2010
Get a k. mug for your cousin Paul.
1: the response a girl uses when she is pissed off at you, if you dont tell her what she wants to hear, or if you are just straight up annoying

2: the shortened version of "okay"

3: the letter people use when they are to lazy to say okay
boy: "you are a b*tch"
girl: "k"

guy 1: "lets go get some food"
guy 2: "k"

friend 1: "ill talk to you later"
friend 2: "k"
by wolfmeister January 15, 2011
Get the k neck gaiter and mug.
K is a word used to ruin all conversations with anybody important your crush your idol etc. When somone uses the term "k" they are clearly uninterested, fed up or sick of the conversation.
"(Long heart felt poem)"
"K"
Or

"I have a secret to tell, I love you"
"K"
by Themildrems November 30, 2014
Get a k mug for your mate Rihanna.
A dumb response used by people who couldn't give two shits about what you're saying.
Person 1: My grandma just died.
Person 2: K

Girl: I really like you. I've liked you for a really long time. I think that you're funny and smart and cute and just an awesome peson. And I really hope that me telling you this doesn't ruin our friendship that we've had for 4 years.

Boy: K

Girl: K? I just poured my heart out to you and all you have to say is "K!"
by AVERAGE_GIRL234 April 04, 2010
Get the k neck gaiter and mug.
the eleventh letter of the alphabet and the most annoying letter to receive by text message. which if someone texts you only saying "k" it usually means that person has no interest whatsoever and could really care less.
K
by SimoneWexler March 06, 2011
Get the k neck gaiter and mug.
when someone says something mean: k
when someone says something nice: k
when someone is annoying: k
when someone tells a dumb story: k
when someone you don't like walks in the room: k
when someone tells you to do something: k
when you get yelled at: k
Teacher: "You are a disgrace to your parents"
Me: "k"
by hahak May 25, 2012
Get a k mug for your Aunt Nathalie.