The main categorical feature of a proper noun (PN), which distinguishes it from a common noun, is asemanticism. In phraseology, however, a PN acquires a meaning and often – various
connotations. Moreover, phraseologisms can generate pseudo proper nouns full of semantics and expression. The article deals with this kind of phraseology (e.g. Czech za krále Cvrčka, Russian
при царе Горохе, Ukrainian за царя Хмеля, Polish za króla Sasa, Serbian о Кукову дне, на Куково љето, Croatian na Kukovo lijeto, etc.).