Spare-tire meaning

An additional tire carried in a vehicle as a replacement for one that goes flat.
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A paunch; a potbelly.
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An extra tire and wheel for a motor vehicle, stored in the vehicle for use in an emergency.
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A bulging layer of fat around the waist.
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(North America) An extra wheel or tire carried as a replacement in case of a flat.
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(North America, idiomatic) Excess weight or fat accumulated near the waist.
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