Indonesian. Some non-Javanese residents added their own dialects to the pot, resulting what is called the Central Java slang Jogjakarta Jogjakarta slang is also known as Basa Walikan, literally means 'Reverse Language' . It is a transformation of Javanese, in which Javanese consonants are switched with one another, as shown below: ha na ca ra ka ↔ pa dha ja ya nya da ta sa wa la ↔ ma ga ba tha nga With the above rules, the expletive expression Matamu! (which literally means: 'Your Eyes!') becomes Dagadu!. The following website automatically performs this transformation: Walikan Translator Malang Malang slang is inverted alphabetical word (mostly from Javanese and little bit from Indonesian). Commonly known in Javanese as Boso Walikan Malang (Reversed: Osob Kiwalan Ngalam. Meaning: Malang's Reversed language). The slang started appearing sometime in 1949 when the people at Malang's Gerilya Rakyat Kota (GRK meaning City People's Guerilla) needed a form of communication method that is unknown to the occupying Dutch intelligence (Both to the Dutchman, and the recruited natives) while maintaining typical daily conversation. Thus, the idea to reverse Javanese and Indonesian words was born. The goal of the creation of the language is to maintain plan secrecy, prevent leakage of information, and to confuse the enemy. At First, the language was only known amongst the guerillas. Further adding the language's purpose as an identifier whether that person is a friend or foe. But after the Dutch retreated from the city, the language remained and becoming more widespread amongst the people of Malang and its surroundings. In recent years, the technique of reversing words has become more popular nationwide and played a role in creating modern Indonesian slang. Words such as Ngab (From: Abang meaning 'Older Brother'), Sabi (From: Bisa meaning 'Be able to..' or 'Can') or Kuy (From: Yuk meaning 'Let's go') owes credit to Malang's Reversed Language.Examples:Sam = Mas (Older brother. Javanese version of 'Abang' or 'Bang')Ongis Nade= Singo Edan (the nickname of Arema Cronus F.C.)Helum= Muleh (Go home)Ublem= Mlebu (Enter)Utem= Metu (Exit)Ojob= Bojo (Husband/Wife)Oges= Sego (Rice)Rajajowas= Sawojajar (an area in Malang)Oyoborus= SuroboyoNgalam= MalangKera Ngalam= Arek Malang (lit. The kid of Malang. Referring to The People of Malang)Libom= Mobil (Car)Nawak Ewed = Kawan Dewe (Your own Friend/s)Silup= Pulis (Police (Although the Javanese word for police is the same as in Indonesian, Polisi. they altered the word slightly to make it less obvious)) Surabaya As the second largest