Ernesto Laclau and Chantal Mouffe are counted as two prominent contemporary political thinkers and philosophers. In recent years, they have tried to use previous philosophers’ rich legacies to theorize about discourse and to prepare a theoretical framework for analyzing it. So, they are two pioneers in theorizing about discourse. This essay investigates de Saussurian- Lacanian concepts in their analysis of discourse. Laclau and Mouffe have insisted on the partial fixation of meaning. They have paid attention to de Saussure’s principle of ‘value’ and developed their specific way of conceptualizing. They have also borrowed the concept of ‘point de capiton’ from Lacanian psychoanalysis and called it the ‘nodal point’. According to these theoretical backgrounds, they believe that neither absolute fixity nor absolute non-fixity of meaning is possible.