In the children´s world, the communication runs in various forms different from those typical for the communication of the adults. Humorous verses, by means of which mainly the children of the same age communicate within the environment distant from their family background, represent special forms of contacts. Despite the long-term tradition in researching the children´s folklore, Czech ethnology remains a debtor in this field, not only in the field of basic research, but also especially in the field of interdisciplinary study. As to the formal and aesthetical standpoint, the rhythm and rhyme are primary features of children´s output, namely at the expense of all other elements. However, the motifs of individual rhymed expresses, the humour, the ratio of perceiving the vulgarity of certain words, the trust in the truth of expressions acquired at transmission among the children of the same age and especially the motivation to create the verses- all the above is significantly influenced by the age of a child. Many questions in this field can be answered by the developmental psychology and the psychoanalysis.