brain bucket
1. A helmet to protect the head and brain, as worn by (e.g.) skateboarders, motorcyclists, soldiers, etc. It may not be fashionable, but if you wear your brain bucket when you ride your motorcycle, it may just save your life. We've experienced a lot of heavy fire in this region, so all soldiers are required to wear their brain buckets at all times in the field. If you don't want to wear a brain bucket, you can't go skateboarding—it's simple as that.
2. dated One's skull. She received a knock to her brain bucket after she slipped on the stairs. After the accident, the doctors did a scan of his brain bucket to check for fractures. Some thug at the train station cracked me on the brain bucket and stole my wallet!
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