Incident in which you take a dump, and the toilet splashes you back in perineum. This is different from a regular bidet in that it's the toilet water that's splashing you, not a directed tap.
As a rule, this nearly never happens at home, and it frequently happens when you're forced to use a stall with overtly nasty waters or after you've already urinated.
person one: I'm a little worried. I had to use the portajohn at the airshow, and it gave me a spontaneous bidet.
Friend: Dude, you need to see your doctor.
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug