なになん 何が何だか LinksSentence search for 何が何だかSentence search for なにがなんだかKanji details for 何Edit in JMdict Expressions (phrases, clauses, etc.)1. what's what; heads or tailsusu. as ~わからないこのしごと仕事はなにがなん何が何だかさっぱりわ分からないわ。I can't make heads or tails of this assignment. Discussions Log in to talk about this word.