Bed Room ? You should give the context of the abbreviation for a better response. Usually in MMORPG's Br is the abbreviation for Brazil. So if somebody types "br?" they are enquiring if you speak the...
Bench Rest. A target scope.
it means "algum br"
Best Regards
Br means Mist... in spanish i guess Br comes from Bruma, a kind of Mist. Fg is Fog, Fu is Smoke (from "fumarola" in spanish as well)