Thread:Mathmagician/@comment-4960207-20121122023212/@comment-4674838-20121122025041

In short: not really.

Content on Wikia is licensed CC-BY-SA, meaning anyone is free to copy or modify code from a Wikia wiki and place it on any other website. The license requires attribution, meaning if somebody copies your text/template/etc., they're supposed to provide a link to your wiki.

Note: Images uploaded to your wiki are NOT necessarily CC-BY-SA. They're copyrighted to whoever owns them, or they may be being used under "Fair Use"

So, you can't prevent the person from copying your content. You could ask the person to attribute the copied content, as required by the license (described on the page I just linked).