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Engine Underpants / ˈɛn dʒən • ˈʌn dərˌpænts / Also known as " Creepers / ˈkri pərz / " Any type of undergarment with a tendency to repetitively ride up your butt crack, with the power and reliability the of a steam-engine train riding the rail to the express tunnel, leaving you unhappily maneuvering it free and/or pulling it out like clockwork. *Insert mental image of Thomas the Tank Engine Boxer-Briefs >>Here<< .*
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