Definition of spare tire
1 : an extra tire for a car
2 informal : a roll of fat around the waist
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From the Editors at Merriam-Webster
8 Words and Phrases from the Road
8 Words and Phrases from the Road
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“Spare tire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spare%20tire. Accessed 23 Jan. 2021.
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