Using a 14 inch length of aquarium air tubing, I collected dry fine sand and dirt, enough to fill 5 inches of the tubing's length. I then sounded an empty section of the same tubing into my urethra going 6 inches deep. Orienting my cock and tubing up, I watch as the dry dirt slides down into my cock and disappearing from view. To completely empty the tubing, I smoothly extract the tubing before any urethral fluids can soak into the dirt and plugging the tubing. The tubing comes out clean, all the sand and dirt deposited in my urethra. Palpating the underside of my cock confirms the dirt is in there and examining the opening of my urethra allows me to see the dark presence of the dirt, now slowly absorbing the urethral fluids.

Over two hours have since past, not a drop of dirt has been expelled from my cock. I also can no longer feel the presence of the dirt as I was able to right after sounding while it was still dry. Since I peed right before sounding the dirt, it may be several hours more before the dirt gets washed out, Meanwhile, I'm enjoying this and I'll be doing it again.

-=-=-

Well, it's the following day. I went to bed last night while my urethra was filled with dirt. I woke up at 3AM when I needed to pee. The urine flushed out the dirt, yet I enjoyed a dirt filled urethra for a full seven hours.