In onomastic and linguistic research literature, there are only a few
works dealing explicitly with modern unofficial place names. The terminological
delimitation of this name class alone presents some difficulties. For what an
unofficial place name is is first of all explained by what it is not, namely officially
fixed. Unofficial toponyms are essentially distinguished by the fact that
they do not have an officially standardized status. They have mostly been
developed in oral communication and are used by various groups of speakers
at different times, above all to mark social affiliations. But it is precisely in their
lack of official fixation that they allow an illuminating look at mechanisms of
name genesis, name establishment and the social role of place names.