Freballer's dare
I call this descending trousers. I wore a pair of trousers one size too big with no belt (and no underwear). I could temporarily hold them up by sticking my tummy out but a sneeze or nose blow put a stop to that. Once they had started moving down there was no stopping them. I could feel the waistband inching down my hips and buttocks with every step I took. Maybe a little wiggle too if I was impatient. Then, suddenly and without warning, they dropped to the floor. Everything was exposed.
A few weeks ago I was walking through Home Depot wearing a pair of old jeans....
I was carrying a bunch of replacement light bulbs and realized that with every step I took towards the register, the jeans were slipping down further and further... I tried to stick out my abs to hold them up, but I still could feel them slipping down the closer I came to the register...At the time all I could think of was... why did I not wear something under them..... But too late.
I have a pair of old swim trunks that I wear when I have to wear something. The elastic is almost gone from them. We were at the beach with some friends once and as I came out of the water they slipped down to my knees. Our friends thought it was so funny. Little did they know that it didn't bother me one bit to be seen by them.