The CSI version of "Cool story bro." If you get this...you probably just treated a forum like a blog, or you are generally disliked on your forum of choice (cough, NMB)
Seriously guy...do we have to know everything?
Guy: "OMG GUYS! I had a dream that I was choking on a chicken bone but it turns out the chicken was actually..."

Guy2: "Whoa whoa whoa Guy...I'll file that under CSB"

Guy: :C
by Taizuku April 6, 2011
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The abbreviated way to say "cool story bro", often used to blatantly make the disgust clear with little to no sarcastic intentions.
A: Did you see the Raiders dominate the Chargers last night? And look at my new Jacoby jersey and new hat and and and and and....

B:CSB.
by JoMamma1241 December 7, 2010
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it means cool story bro
created by mariah, kaytlyn and noa
teacher: do your homework!
you: good to know miss/mr CSB!
by mkn2421 July 9, 2011
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"Cool Story Bro." By douchebags for douchebags.
Douche 1: Bro, i was at the bar last night pickin up babes and i saw Denzel Washington!

Douche 2: Csb.

Douche 1: Wow...
by nikehitops September 24, 2011
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From Tourette's Guy;

Chicken Shit Bull Shit:

a phrase signifying an unworthy thing or task
"I don't have time for this chicken shit bull shit CSBS."
-Tourette's Guy
by brumm09 April 16, 2009
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cool story bro.
if you dont really care what the person is saying you say csb.
Daughter: OMG i totally just had sex
Father: csb
by mackmackk January 31, 2011
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Cool Story Bro
When somebody says something you simply do not give a fuck about you reply with this.
Created by Ipklikenoob of #Nlmx and spread by his minions.
Alot of the people who say this enjoy jocking my shit.
Kid 1: DOOD THIS MORNING I WENT TO MC DONALDS AND I GOT AN ICE CREAM IT WUZ FUCKIN WICKED SICK BR0 U SHOULDA BEEN DER!
Me: Csb
by Dannyisgodx3 September 28, 2009
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