From Longman Dictionary of Contemporary Englishdouble-Dutchˌdouble-ˈDutch noun [uncountable]  1 British English informalUNDERSTAND speech or writing that you cannot understand SYN nonsense2 American EnglishDGO a game in which one child jumps over two long ropes that are being swung around by other children 
                                                    
                                                
