1 definition by RudeApproved

Top Definition
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.
by RudeApproved March 09, 2011

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