One pouch, two very different meanings
The American name “fanny pack” sounds harmless in the United States, where fanny is a mild word for the buttocks. In Britain, the same word is commonly understood as vulgar slang for female genitalia. So the name can land very differently across the Atlantic—even though the item is simply a small pouch worn around the waist.
Why “bum bag” makes sense
British English has a straightforward alternative: bum means buttocks, and the pouch is worn at the waist, often over or behind them. Put together, “bum bag” describes the accessory without importing the American word’s unintended meaning. It is a practical example of how familiar words can diverge in meaning between varieties of English.
A small translation to remember
The difference matters most in ordinary situations: asking for one in a British shop, reading a product label, or packing advice for a trip. Say bum bag in Britain and fanny pack in the United States, and you are more likely to be understood as talking about luggage—not anatomy.
