The wife complained about an apparently common lady's problem... squatting in the woods and having leg pee... So to shut her up, I got her this... http://www.shewee.com/
Female mountaineers have used them for decades. Halfway up Everest is no place to have to drop your pants and squat.
And then there is the Stadium Pal for men - For when you gotta go but you wanna stay http://www.stadiumpal.com/
I waited almost 10 minutes before asking......google only brings up car dealerships. I think I know what you mean, but not sure.