http://fmylife.com/ The one where people can vote F*** it, yeah! or You deserve it! Any info is appreciated. Thanks, Andy
It could be any one of several popularity or voting plug ins if it is not coded into the theme...it seems what they have done (if it is a plug in) was to open the configuration files of the plug in and simply changed the text.
Here is one you may check out. It can be customized with whatever wording you want but you would have to actually go in and edit some files http://www.tevine.com/projects/voteitup/