Within this study, street writings identified in Siirt province were analysed drawing upon stylistics and semiotics. It is observed that street writings, as a product of the social life, are considered as a character of “discourse”. With this respect, this studycan also be considered as a discourse analysis. Texts obtained from the street writings vary due to their structures and express perspectives from different writers. In this study, the focus was on to discover what type of functions street writings have in interpersonal communication and what type of meanings they arouse in readers’ minds. When analysing the street writings, not only linguistic structures of text but also non- linguistic and meta-la guage structures were taken into consideration. There was an explanation on figures of speech (rhetoric) such as simile, metaphor and contrast which constitute the backbone of the street writings, various deviations, symbols and intertextual relations, and messages within these writings were interpreted. Thus, the door to the mysterious world of the street writings as an output of the relation and interaction of the person with both him/herself and other individuals was opened slightly.