Jizm Jar Share definition Flag A person or object intended for the sole purpose of holding extraneous amounts of jizm/cum. Guy 1: Dude...what's up with that girl you been banging?Guy 2: She's just my jizm jar, bro. Bang her, dump it, and go! Jizm Jar by Khem Val January 2, 2012 0 0 Get merch Get the Jizm Jar mug. Buy Now — $32.95 See more merch