Top Definition
A designated place in your house or apartment where you do most of your masturbating.
Hey, Jimmy quit hogging the ejaculatorium, you've been in there for six hours!

With a few Playboy cutouts this closet will make the perfect ejaculatorium.
by cock-ninja August 25, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.