When receiving fellatio and your partner unintentionally covers your penis hole with their tongue at the moment of ejaculation, causing extreme jizz backup and pain.
Last night I was getting some dome off that new slut in town Suzy and that slore caused a jizz dam of epic proportions.
Jizz Lung is a serious illness of the lungs resulting from prolonged exposure to aerosol jizz particles. Those afflicted often experience death and pain. Its treatment carries added risks, such as Napkin Lung. Jizz Lung is not communicable.
Gene Wilder was long a silent sufferer of Jizz Lung before succumbing to its fatal embrace in 2001.
I would not hang out at Russell's house if I were you; you might catch Jizz Lung.