Combination of "stunning" and "brave". Used ironically and/or sarcastically by conservatives (or anyone who despises wokeness) to mock liberals who would call some celebrity, for example, "stunning and brave" for openly taking a liberal political position on something.
Liberal: Did you hear Ellen Page came out as trans, he's so stunning and brave!
Conservative: *rolls eyes* Oh yeah, so stunbrave. Whoop dee doo.
Conservative: *rolls eyes* Oh yeah, so stunbrave. Whoop dee doo.
by Russellsroughneck November 5, 2021