The fact that the three men on the left are apparently clones or identical twins came close to being the focus of this joke. I threw a lot of different jokes away on this one, in fact.
What kept coming back to me was the idea that this discussion somehow involved a feminine hygiene spray. I have no idea why. It’s kind of a cheap, gutter-level source of humor. I even thought George Carlin was stooping when he suggested coming out with one called “Sprunt.”
But the idea really fought its way back to my forebrain every time I tried to discard it, so it led me here. As much as I analyze it, I may never understand my joke-writing process.