You might want to try verifying your site using Google Webmaster Tools, by going under Tools > Available Tools:
https://mettealfast.wordpress.com/wp-admin/tools.php
There are complete instructions here:
http://en.support.wordpress.com/webmaster-tools/
Once you've verified the site, you will be better able to see how Google's search spider is interacting with your site, although you may not be able to determine why it's using the DMOZ snippet.
Here is some information from Google itself on how it determines what snippets to display in its search results - you might find a nugget there that may be useful:
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=35624
Let me know how it goes!