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1.
a spin-off of the phrase, "cool story, bro." commonly used by stoners and bros.
Tim: So, when's the party?

Caleb: Later tonight, you coming?

Tim: Yeah, dude.

Alex: I memorized the quadratic formula.

Tim: Sick, bro.

Caleb: Yeah, sick bro.
by EE Czar March 22, 2010