Raped beyond repair.
It comes from the SDSU slang that students tend to use when describing the last chemistry or calculus test they took. Although derived from this language, the term can be used in numerous ways!
1. After that Chem test on spectrophotometry, my gpa was RBR!
2. "Did you hear what happened to Handoper at Monster Massive?"
-'yeah, i heard he was rolling balls and now all he does is shit strait cuz he was RBR!"