noun
a slang term referring to the irritation or chafing that occurs when skin rubs together, typically in the thigh area
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Chub rub, also known as chafing, is a common issue for individuals with larger thighs.
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I always have to wear shorts under my dress to prevent chub rub.
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I hate when I get chub rub from wearing tight jeans all day.
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Dealing with chub rub is like a constant reminder of the discomfort caused by friction.