From the Word Filter menu (Admin Interface -> Tools -> Word Filter) admins can select  words or phrases, considered offensive, that won't be allowed to be used for describing products.

In the following example, we set as the group "offensive word" as unussable for product descriptions.

In the Listing Details section of the Create menu, users can describe items using whichever words they want. Thus, according to the example, the product title contains the previously flagged terms. See below:

However, in the presentation ad clients won't see the flagged words. Notice that in their place there's a string of nonsense characters.