Thank you to the wonderful world of google,
I was intrigued, and pursued the link. Apparently this phrase is a euphemism used by those who gain sexual gratification from watching the act of urination. Good luck to them I say. There are sites called “Doctor Trickle” and “Pissing Bondage” among many others catering for this need. I am sure that my readers (a Mrs Trickle of
Of course, publishing this data increases the chances of my site being visited by those who some might accuse of being perverse.
Whoever they are, and whatever they enjoy provided it does not harm others, they are welcome here.