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1.
A box warmer is a wool garment shaped like a purse. One strap hangs from your neck, while the other loops around through your legs to go around the back of your shoulders. In the front connecting the straps is a square piece of material, usually wool, to keep your unmentionables warm.
Usually worn on a chilly day under ones clothes
It was quite cold out this morning so I wore my box warmer
by Tuuuurd March 09, 2010