1. slang A receptacle in which the supplies needed for routine, tedious medical procedures are carried. The first thing you'll want to get when you start doing rounds is a scut bucket to carry things like sutures, IV lines, gauze, and so on.
2. vulgar slang A low, contemptible, sexually promiscuous person, especially a woman. It's all that scut bucket's fault for breaking up my marriage! Just because she's had a couple of boyfriends in a short span of time doesn't make her some kind of scut bucket.