Waterproof rubber boots worn in wet or muddy conditions, commonly used by farmers and outdoor workers.
From 'gumbo' (the thick stew, used metaphorically for muddy conditions) plus 'boots'. The term became common in Commonwealth countries to describe Wellington boots or rubber boots.
Gumboots got their name because they're perfect for wading through gumbo—that thick, sticky mud—so the term describes both the problem and the solution in one word!
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