Does your screen name have any significance? Basically manvil is a combination of "M" (first letter of my first name) and "anvil" because I do some colonial style blacksmithing and metal work as a hobby.
Now until today that didn't really have much significance whatsover, just something I came up with. But I got bored at work and decided to google "manvil" and this was the first hit:
http://www.urbandictionary.com/define.php?term=manvil
Needless to say it's going to be placed into heavy rotation in my vocabulary.