Used after a friend uses a word with a "c" in it, thus replacing the "c" with a "k". Originates from the use of replacing "c" with a "k" in the popular Mortal Kombat games.
Friend: "That's so cool!"
You: "Kool with a K!"
by Milkerboy April 23, 2011
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To increase in magnitude with dislike or disdain. Can be used to modify or enhance exsisting profanity, or sometimes used as a stand alone phrase.
"Dude, you suck with a K!" or "I've got your (insert any word here) hangin', with a K!" or very simply, "With a K man, WITH...A...K!"
by Lee W March 8, 2004
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1. A short version of "okay"

2. A very rude, hateful way to agree or acknowledge.
A: Wow, you really hurt my feelings...

B: k

A: ...I'm gonna go now...

B: k

A: I'm sorry :'

B: k
by AccurateSabotage February 27, 2011
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The "Weapons" board of 4chan.
A regular poster on /k/ is usually referred to as a /k/ommando, and discussions usually involve modern weaponry, but this is by no means exclusive.
Like most other boards on the site, it is primarily likened to a river of shit with gold nuggets on the bottom. Whether or not it is worth panning is entirely up to you.
/k/ - a magical place
by Zolotros July 30, 2012
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K-On! (けいおん!) Is a Japanese four-panel comic strip seinen manga written and illustrated by Kakifly. The four main characters in the beginning of the story are Yui Hirasawa (Guitar), Ritsu Tainaka (Drums), Mio Akiyama (Bass), and Tsumugi Kotobuki (Keyboard). Later, Azusa Nakano (Guitar) joins the Keionbu (Hence the anime's name, K-On!).
K-On! Was a wonderful Manga/Anime! I want to watch the entire series again!
by MinaGlaca August 13, 2012
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The letter people text you when they don't want to talk to you anymore.
Person 1: Cool, I'll talk to you tomorrow then?
Person 2: K
by Skitzophrenic December 11, 2012
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The text you receive from your girlfriend, really meaning "fuck you"
"babe im sorry" -boy
"k" -girl
by BoobMaster95 April 27, 2011
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