Baterium  

(v) Enterance to or atrium of a building occupied by a vampire(s), in which they change from bat form to human form. See also: Haven, Batcave, chantrey, elysium

Morpheous Darkland swooped into the baterium and quickly changed back into his "normal" form before the other tenants realized there was a vampire living in their building.

Baterium by NotEvilPete December 18, 2006

Baxterium 

The sexual element of pleasure.

Want some Baxterium? It'll make you horny!!!

Baxterium by Harry from Keswick August 22, 2008

Bacterium 

Bacterium is a bi-gendered creature, most often found in zombies. It is most often pink, but oftentimes green.

"Dude, I can't tell whether thats a girl or a boy!"
"Yep, thats a total bacterium..."

Bacterium by FelixPhoenix October 15, 2006