Suspenders or straps worn over the shoulders to hold up trousers.
From American English, possibly derived from 'gallus' (a peg or support), becoming a common term for suspenders by the mid-1800s in rural America, especially in Southern and Appalachian dialects.
Galluses became such a symbol of rural American life that they appear constantly in old photographs and period literature—Mark Twain's characters wore them, making this simple word a cultural marker of a specific time and place.
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