Adjective. (ar - BEE - en)
Of and pertaining to anything relating to a person who goes by the name "R.B." Since people going by that name are generally multi-talented and awesome, to call something "rbian" is to stamp it with approval and high praise.
"Jim is a fine cook, what an rbian feast he has prepared!"
"I was not comfortable until I experienced some rbian guidance. Is anyone else sliding?"