Taxonomy blacklist

This module lets administrators blacklist a set of terms on vocabularies. This is useful if a vocabulary can be modified by your end-users (prevents bad words from polluting your tags on a social-networking site, for instance) or if the vocabulary is feeded automatically (for instance with keywords extracted automatically through the Yahoo Term Extraction module).

Every time a new term appears in any of your vocabularies, this term is checked against your blacklist. If it matches(*), then it is immediately deleted from the vocabulary.
Also, when you update your blacklist, terms that match the blacklist are automatically deleted.

(*) match can be either a perfect match or a metaphone-match, at your choice