 For example see the Wilhouette Waist Band, which is worn under clothing and which claims to limit expansion of the stomach to make you feel full earlier .Some men use the waistband in order to hide a genital bulge (also known by the slang terms "man-bulge" or "moose-knuckle") in order to avoid embarrassment.During an erection, this is done by jutting it upwards beneath the waistband.