This article examines the sociolinguistic and pragmatic dimensions of taboo discourse and ritual speech acts embedded in a corpus of orally transmitted narratives, incantations, and rites collected from the Bakweri, Bakossi, Manyu, Lebialem, and Grassfields (Kom, Awing, Bafmen, Mundum, Bafut, and related Nfon-centred) communities of Cameroon. Situated within the ethnography of speaking (Hymes, 1974), speech act theory (Austin, 1962; Searle, 1969), taboo language studies (Allan &Burridge, 2006), and ecolinguistics (Stibbe, 2015), the study asks how prohibition is linguistically encoded, how ritual utterances function performatively, and how ideophones and code choice index cultural identity within these texts. A qualitative discourse-analytic approach was applied to eighty oral texts, comprising taboo narratives and ritual incantations, coded for deontic modality, conditional sanction structures, speech act type, ideophonic form, and lexical code-mixing. Findings reveal that prohibition is characteristically encoded through agentless passive constructions and if-then sanction clauses that displace human authority onto a cosmological order, that incantatory rites function as performative utterances whose felicity depends on communally shared ontological belief, that ideophones perform an evidential and dramatising function within narrative performance, and that untranslated vernacular lexis operates as an index of cultural untranslatability and ethnolinguistic identity. The study argues that taboo discourse constitutes an informal but linguistically systematic mechanism of ecological governance and social regulation that predates, and in places substitutes for, statutory conservation law. It concludes that the accelerating attrition of these oral genres under the pressures of Christianisation and modernisation constitutes not only cultural loss but also the erosion of an indigenous ecolinguistic register, and it calls for sustained, corpus-based documentation of Cameroonian oral traditions.