I've watched the episode of The Vampire Diaries today, and here's the question: what does it mean "to blow out one's arm" in the following context?
So guess who came into the hospital for a shoulder arthroscopy this morning. Lady Whitmore, the girl from the bonfire, the one you miraculously saved from certain death and I can't figure out how. Turns out she was here on a tennis scholarship before she blew out her arm last year. Now she needs to get her cartilage cleaned out every 6 months.