General
brain bucket
What does brain bucket mean?
A hard hat. The job-site helmet that catches the dropped wrench before it caves your skull in. Same nickname rides over into motorcycle and military aviation slang for helmets generally — anywhere your brain needs a bucket.
"Foreman'll write you up if he catches you on deck without your brain bucket."
Origin
Mid-20th-century American slang; spread across construction, military, and motorcycling for any protective helmet.
Frequently asked questions
What does brain bucket mean?
Brain bucket is slang for a hard hat, or any helmet depending on the trade.
How do you use brain bucket in a sentence?
"Don't step on site without your brain bucket on."
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