The article gives an overview of the history of censorship in Soviet Estonia, concentrating on the regulations that dictated the content of humorous texts and images from pre-1990s. The Estonian media communication developed in the interaction of two contradicting fields of influence: on the one hand, it was affected by the official institutional sphere, and on the other, by unofficial, reflexive and collective citizenship. During active Sovietisation in 1940s-1950s, people were deprived of any laughter and ambiguity. Public sphere was under the close scrutiny of political censorship. In the next two decades until the late 1980s, the reflexive and critical streams became more visible in the society. This was accompanied by publishing more and versatile humorous texts, the presence of humorous texts in printed press, and convergence of talented authors into a school of renowned humour journalists. Humour was institutionalised in both cultural and political sphere, and after 1987 it gained even new functions, becoming a forerunner for glasnost and an instrument of de-Sovietisation. On the basis of the present study, we can claim that the presence of humour in journalism is an indicator of emotions in the public sphere.