Original Bro 

someone who was a lax bro before it was cool to be one (OB)

bro look at that pimp jbills hes got mad flow. yeah bro, hes an original bro.

Original Bro by chill.i.am. October 27, 2010

original response bro 

said in comeback of someone using the sarcastic and overused "Cool story Bro"

MR X- i went to the shop and got some coke

mr y- cool story bro

MR X- original response bro! did you come up with that one yourself?

original response bro by tokin the day away December 25, 2010