There might still be areas in Central and West Africa where one can find instances of endogenous multilingualism, where speakers’ language repertoires and ideologies are mostly localised. The case in point is presented by the sociolinguistic situation found in Lower Fungom, a rural, marginal, and linguistically very varied area of North West Cameroon. The assays presented, stemming from a strongly ethnographic approach, lead to revise basic concepts in mainstream sociolinguistics – like that of the target of an index – crucially adding spiritual fears amid the factors defining the evolution of individual multilingual repertoires in local languages.