This is what is found on a touch screen of a TV or computer display in a bar restroom. It’s the crusted, sticky, semen-ish dischargeon the tip of one’s index finger that sticks to the screen.
"I was in RampHearts Bar and noticed mad dick boogers on the touch screen LED TV over the urinal. I told Cameron to have someone wipe it off"
The male act of ejaculating under your desk, and having your semen stick underneath. Akin to children in grade school sticking their boogers underneath their desks.