A thin thread of male ejaculate suspended between two surfaces.
Generally between cock and mouth but could just aswell be two thighs or several faces. In rare cases between ones own cock and mouth.
"Man you should have seen the jizz bridge I had going between suzie's eye and my dick last night, you could have charged a toll on that monster"
"After Sam pounded his chocolate chimney Corey opened his ass cheeks to reveil at least fifty mini jizz bridges"