Cool story, bro. When someone tells you a boring story that really needn't be shared. Sarcastically replied.
Fred: "Yesterday I got a cut, so I put a band-aid on it."
Nick: "CSB."
by JewForensicsGirl May 8, 2010
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When someone tells a personal story (usually sad, depressive), in a chan, and you don't give a shit.
It sucks to be you; CSB
by Tutzz July 11, 2009
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Cool story bro.

A phrase sarcastically used to indicate one's disgust or indifference to someone's story and you really don't care.
Person A: Yo i just got dumped.
Person B: CSB
by Yobeebs March 15, 2011
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Corrina step bros. A group of people named “Shnaggy hose, Cuffem baby, Prime, Fake wave AKA (Zane), and Bald baby Adin” Came up with this term due to Adins feelings for Corrina.
Ronaldo: Remember when Adin was being a S word at corrinas house?

Clix baby: Yeah CSB fr, on mother’s life

by CUFFEM BABY February 23, 2021
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1. Stands for cock-sucking bitch. A good way to insult women while in the presence of the ignorant masses.

2. Cool Story Bro. A sarcastic response to a lame story.
1. Bob: Nancy said that I can't be unsupervised because I'm not 18.

Spencer: What a CSB
2. Joey: Dude yesterday I skated down my street!

Billy: CSB
by kickflipdude June 23, 2011
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An abbreviation for Come Soaked braces. Where a mans semen is ejaculated into the mouth of one who wears braces. The metalic brace is soaked in manwax.
Johnny: Hey check out Sammi she looks cute in those braces
Greg: Damn man I'd give her CSB
by Shadow_Sha...nis November 27, 2006
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Oh!! man look at her she's hot !! she's CSB
by lovindoll September 11, 2011
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