The controversy about using inappropriate language in children's literature is constantly debated and repeatedly attracts the attention of the public. In Slovenia, this happened when the novel Na zeleno vejo by Andrej Predin was assigned as the text for the Cankar competition, a Slovenian language competition. Several reading mentors and other readers, specifically adults, were bothered by its use of profanity and vulgar phrases. However, no literature is immune from the use of profanity and cursing, not even children's literature. As seen in various picture books and short illustrated stories, there are instances of adults, children, and even animals using profanity. Through the analysis, synthesis, and comparative method of mostly modern literary Slovenian texts, suitable for the first six years of Slovenia's nine-year primary school, it was found that profanity and expletives are stylistically and semantically diverse, and their pragmatic nature must be considered. It was established that, in most cases, profanity and insults are justifiably placed in Slovenian literary works for children. Most often, they appear as a motif; less often, they are used as the central theme (or motif) in the text. A significant role is played by the reading mentor, who must alert the readers to the function of profanity in the text.