EN
The paper deals whit idiomatic expressions such „palce lizać / paluszki lizać” and „że palce lizać / że paluszki lizać” which are usually described as phraseological units or verbal phrases. The research conducted here allows us to conclude, that – despite of what could be assumed based on their form – these expressions are functionally analogous not to verbs, but to adjectives or adverbs. In this case, we observe the lack of correlation between the formal shape of the expression and its grammatical features.