To split something (usually a state) apart, on a usually ethnic basis. This verb first appeared in the 1990's during the War in Bosnia, led by Croats , Serbs and Bosnians, which caused the demise of the Socialist Federal Republic of Yugoslavia ( SFRY ). It is nowadays again popular with Kosovar Albanians trying to rip off a part of Serbia -Kosovo (15% of Serbian territory, imagine the US without Texas)- for themselves.