1. A gym or health club well known for it's hook up potential. 2. Slang for the bedroom especially after a strenuous/wild sex session.
1. I'm going to workout at the jizznasium. I hooked up with two gym bunnies there last week! 2. C'mon baby lets go into the jizznasium so I can work out on your hoo hah.
Jizzantium is a term used when fresh semen (jizz) is released anywhere and has sit in that location undisturbed for days. This process allows for the jizz to harden into a hard enzyme rich mineral known as Jizzantium.
Bro I justJizzed on my carpet and gave that load a few days to breath and now its formed into Jizzantium!