Linguistic violence, such as insults, humiliations, and related forms, has been an integral part of human communication since time immemorial.The mechanisms underlying insults rest not only on the choice of lexical items but also on the speaker's intention.These components of linguistic violence are examined in the present article through the lens of speech act theory.On the basis of this theoretical framework, it is possible to identify invective linguistic behavior to a certain extent, which constitutes the focus of the presented research.The study investigates invectivity in spoken Czech, with its primary aim being to uncover the relationship between the semantic category of an expression, its function (vulgar versus invective use), and the socio-demographic characteristics of speakers (gender, age, and level of education).The results demonstrate that invectivity is neither a random nor a purely lexical phenomenon, but rather a pragmatically and socially structured process that reflects power relations, cultural norms, and gender stereotypes.By integrating the theoretical framework of speech act theory with empirical sociolinguistic analysis, the research shows that invectivity is a dynamic communicative phenomenon that transcends mere vulgarity; it functions as a tool for the linguistic construction of social hierarchies and cultural identity.