Home › Words › W › whodunwhatwhodunwhatwhodunwhat means A whodunit in which the nature of the crime is a mystery, as well as the identity of the perpetrator.Among words judged in Lexicurio's Arena, whodunwhat ranks #843 of 42,747 for Qualifying.EtymologyFrom who done what, modelled on whodunit.nounA whodunit in which the nature of the crime is a mystery, as well as the identity of the perpetrator.Definitions & examples from Wiktionary (CC BY-SA 3.0).