The air space at a public urinal that your dick is in when you piss; therefore your dick enters the same dick air as the person who was there before you. This would necessarily mean that some heretofore unknown airborne vd could land on your willy.
Dude, Bruce just left the bathroom and I had to go, so I was in his dick air! He better be clean, man.
by catcherholic March 09, 2011