Where is the description meta tag?

Last I heard there was no Wagn-y way to add those, so yes, you could add them to Default Layout after the line with "{{*head}}"

--John Abbe.....2014-01-06 04:24:20 +0000

What he said!

--Ethan McCutchen.....2014-01-06 16:48:07 +0000