(That…) will happen when fish fly! Home The Lexicon (That…) will happen when fish fly! Thumbnail Phrase or Word(That…) will happen when fish fly!DefinitionUsed to describe something that will never happen.LanguageEnglishTypeFaunamorphSubcategorySwimmies and Other Aquatic LifeGrammatical SubcategorySayings/Similes/Aphorisms/Proverbs Previous itemA woman needs a man like a fish needs a bicycle Next itemCold as a fish
