An anonymous guy on 4chan who has, since 2007, uploaded pictures of soda bottles full of his cum from the past year.
This event always takes place on December 26th, the day after Christmas. To some, this day is known as "Jizzmas" and he is known as "Jizzus".
Rumors of his death sometimes circulate, but as of December 26th, 2012, the last "Jizzmas", he was alive.
I wasn't able to get online on December 26th, did cumbottle guy show up?