A Bro suffering from overstoke of regional specific activities.
In West Michigan: "Winds blowin 25kts, water temp is 65 and air temp is 52....any Regional Bros up for some kiteboarding? Heading to pier marquette"
When two or more people come from the same region or area, but find themselves in a different region or area, they can then refer to each other as region brothers.
My friend and I are both born and raised in the same region, so I guess you could say that we are region bros.