Internet abbreviation, mainly used to indicate that the post to which it reacts is something you should say to people who care. Or it could be that the poster tried a little too hard to be cool in your opinion. CSB is short for "Cool Story, Bro!".
Riekus(over openbaar urinueren): en tuin / boom of w/e ergens willekeurige berm is vrij standaard ook
zelfs x iemand om half 2 smiddags ofzo op klaarlichte dag op de grote markt zien zeiken, bah bah
Joostul: CSB
NdeK: diepe dal, daar ga ik momenteel door.
Freez0: CSB
zelfs x iemand om half 2 smiddags ofzo op klaarlichte dag op de grote markt zien zeiken, bah bah
Joostul: CSB
NdeK: diepe dal, daar ga ik momenteel door.
Freez0: CSB
by itmebitches October 3, 2010
Get the CSBmug. 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?
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
Guy2: "Whoa whoa whoa Guy...I'll file that under CSB"
Guy: :C
by Taizuku April 24, 2011
Get the CSBmug. 
by TurtleMan October 23, 2012
Get the CSB NMTmug. 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.
B:CSB.
by JoMamma1241 December 8, 2010
Get the CSBmug. by mkn2421 July 17, 2011
Get the CSBmug.