1 definition by gd1

Top Definition

An appropriate response to a story that is not believable without proof and no proof was provided.

Somewhat like Pics or it didn't happen.

Person A: I just got 15 headshots in a row when spraying with an M249 in Counter Strike Source without hacks!
Person B: Got a replay for this?
Person A: No, but I swear it happened!
Person B: cool story bro.

by gd1 December 01, 2009

Buy a cool story bro mug!