By A Mystery Man Writer
Some men see so little use in the flap that many underwear brands produce
Anatomy of men's underwear - briefs
Underwear Brand Reveals Real Reason Men's Boxers Have Hole In The Front
Teacher Arrested For Doing Cartwheel In Skirt With No Underwear In Front Of Class
Why do men's underwear have a 'pouch' or sort of opening? - Quora
Why do Men's Underwear Have a Hole: Discover Its Purpose
Weird
Underwear Brand Reveals Real Reason Men's Boxers Have Hole In The
Why Is There A Hole In Boxers? – WAMA Underwear
The surprising SECOND use for the hole in men's underwear