How I remove a website when I put an Item?

Indeed, this is a giant problem when I put some specific games that are only for adults.....

Right now I just put a new Videogame that it is only for adult by using the new trick to add a new item [copy the link and insert it to to the Search-Box of Listal].

But after I finished, I realized it copied also the site......f*ck....

So, any kind of solutions to delete a specific Website I don't like to be seen for the obvious reasons?

Thank you for your help.

Please, I really need help with this problem.
I don't want to get banned for this...