http://www.google.com/support/forum/p/Webmasters/label?lid=5489e59697a233d7&hl=en
This page is really helpful for getting rid of google results. If you can't delete the comment, you can contact the owner of the website and have them remove it. If they refuse or you can't get into contact with them, I believe there are ways to get around it that google webmaster explains. Did you delete that account? If so Google will eventually stop using that page in search results.
Good luck!
(Edit: Problem solved, people are awesome, etc.)
Thank you for the suggestion. Several people have asked if I’ve deleted the account or to contact the person who @replied me by name, but that won’t fix the problem. Like mine, that person’s comment cannot be edited.
Via Gawker:
We allow users to edit comments for up to fifteen minutes immediately after posting using the Pencil icon. But after that, your comment becomes part of the public conversation. Our policy is that we will not remove a user’s comments unless we deem them to be in violation of our Terms of Use. So if you want to say something that you will later regret personally, it is advisable that you use a username that does not identify you. We cannot remove your comments simply because you have a change of heart about making them. Additionally, it is our policy not to delete comment accounts.
I think I might be fucked. This is going to really fucking suck when I start looking for real jobs.