Apparently, only 20% of men use the flap in their boxers to use the loo, so people are questioning why it's there. And, it has a lot to do with formal clothes and comfort
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People are discovering why men's underwear has a hole in the front
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People discover why men's underwear has a hole in the front – it's
People discover why men's underwear has a hole in the front – it's not just to pee - Daily Star
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Men's Boxers: What's The Hole For? It's Not Just For Peeing
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