We argue for the existence of nominal serialization based on our analysis of a Finnish construction consisting of a syntactically fixed sequence in which a prosaic noun is followed by an ideophonic noun. A database compiled from a range of diverse sources provides material for the analysis. Muysken and Veenstra's (2006) criteria for the serialization of verbs are adapted and applied to our analysis of these ideophonic constructions as involving the serialization of nouns. We provide evidence that the noun–noun sequence is nested within a possessive structure that behaves as a syntactic atom, exhibits idiosyncratic phonology, and encodes speaker perspective.