During the São João festival celebrations, linguist Marco Neves explored the nuances of the Portuguese language. He clarified the distinction between using “São” versus “Santo” when referring to Saint John, a common point of confusion. Neves also addressed the origins of the popular expression “cara cuspida e escarrada” (a face spat upon and scorned), delving into its historical roots. His analysis extended to the etymology of the words “inenarrável” (indescribable) and “xerife” (sheriff), tracing their paths from Latin and English. The discussion aimed to illuminate the linguistic and cultural history embedded within common Portuguese expressions and traditions. Neves’s explanations provide insight into the evolution of language and its connection to folklore.