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1.
1k
The term 1k or any number w/ a "k" in it started way back from online games. The "k" is a short replacement for "thousand". For some instances , if you double the use of "k" in a number like "1kk" , it means raise the default value by a thousand which is 1 million (or 1M) in short.
Player A : I am selling a *random rare item* , also a *random rare weapon* pm me if interested.
Player B : how much is one for the item ?
Player A : 1k each.
Player B : How bout the weapon ?
Player : 1kk (or 1M); negotiable.
by Vargeign July 10, 2008
 
2.
1k
A way of showing that someone on myspace has 1,000 friends.
Often wrote at the end of a name for myspace popularity.
ex. - This can be shown as 42k OR 42,000 friends.
cole - Did you see MattMURDER on myspace?
janelle - Yeah, he only has 1k! What a LOSER!
cole - I know right?
janelle - obviously... I have like... 39k.
by cole.train February 21, 2008