Pussing is the art of watching a womanpee coupled with the skill of doing this undetected in a public place, usually a toilet cubicle at a pub, hotel, restaurant,
theatre/cinema, office, club etc, or even outside
"I went pussing in my lunch break! I had never peed for anyone before so I had the double excitement of doing this for the first time AND doing it in a semi-public place!
"Man, I could really go some passinos right now."
"Have you have Beverly's passinos? It's the best!"
"Welcome to Passinos Palace, can I take your order?"