Top Definition
A phrase sarcastically used to indicate one's disgust or indifference towards a tl;dr story.
Person A: (lengthy tale about how Person A tragically broke up with his/her mate the other day)

Person B: cool story bro
โดย a1b2c3d4e5 05 มกราคม 2009

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An appropriate response to a story that went nowhere and/or was completely uninteresting.
"This one time me and my brother were eating sandwiches and he was like 'dude, I hate mustard' and I was like 'yeah.'"
"Cool story bro."
โดย Geneva H 07 กุมภาพันธ์ 2009

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4chan saying commonly used when sayer is listening to someone talk to him and doesn't really care
1. so this one time we were sledding down a hill and we totally got broke
2. Cool Story Bro
โดย Biohazard357 27 มีนาคม 2009

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Cool story, bro is the ultimate shut down to faggotry, obvious trolling, and tl;dr infecting the internets, to which there is no response
Troll: "Halo invented the FPS video game genre!"

Other Guy: "Cool Story Bro"
โดย Anonymous Is Legion. 25 ตุลาคม 2010

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The most suitable response one can give to a story that completely wasted ones precious time. Parents, co-workers, and history classes often provoke its usage.
Bobby: So guess what? Nina wrote me up again, because i came to work late the other day.

Kelly: Cool story bro.

*FML why does Bobby think i give two shits about his life??? Please lord have this shift end already! He makes my job REAL RUDE*

Teacher: Agriculture was key to economic progress in the early ages.

Student (shouting): COOL STORY BRO!

Mom: When i was your age i always had my room spotless.

Son: Cool story bro.
โดย RudeApproved 09 มีนาคม 2011

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A phrase used to express indifference or boredom to a long or boring conversation.

There are many different types of "cool story bro". There is:

1) cool story bro
2) cool story bro, you should write a book about it
3) cool story bro, in which chapter do you shut the f*ck up?

etc.
1) Chad: I ate an apple for breakfast

Angie: Cool story bro.

2) Hannah: And then I rinsed my teeth. And then, lo and behold, I saw a black mark. I thought: "Hmm, what can it be?" and hark! It was a cavity! So then, I --

Josie: Cool story bro, you should write a book about it.

3) Tad: boring and lengthy story about scientists growing a new type of capsicum

Beth: Cool story bro, in which chapter do you shut the f*ck up?
โดย NaziCookieMonster 24 มิถุนายน 2011

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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a sentence, statement, word or story that went nowhere and/or was completely uninteresting.
1. Oi Raelene, cool story bro, want a sticker for that?
2. Oi Raelene, cool story bro, needs more dragons and shit!
3. Oi Raelene, put a bookmark in your cool story and continue from no one gives a fuck
4. Oi Raelene, cool story bro, thought it was fucking amazing myself
โดย korean keyboard warrior 23 กรกฎาคม 2011

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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