In the UK, a lightweight hard hat providing low-level impact protection, typically used in warehouses and maintenance environments where full hard hats are impractical. In the US, the term can refer to a baseball-style cap with a hard internal insert. The two senses reflect different safety standards and workplace cultures on either side of the Atlantic.
Warehouse staff are required to wear a bump cap in the loading bay rather than a full hard hat.
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(UK) A hard hat.
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(US) A form of baseball cap.
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Add your own interpretation of "bump cap".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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