Semen ejaculated from a penis and used in absence of any commerically marketed processed sexual lubrication. Most often used by masturbating teenage boys who reach a first orgasm and then use their own jizz to continue stroking their still-erect cocks, resulting in a second orgasm. Also jizzlube is used frequently by gay men engaging in bareback anal sex. When the bare-backing "top" climaxes first, he will often use the jizz he ejaculated onto or inside of the asshole of the "bottom" and continue repeated anal penetration, using his own cum as jizzlube, until his partner reaches his own orgasm. Jizzlube can also be used in mutual gay masturbation scenarios in a similar way as described above.