An abbreviated form of the word "bosnian", in other words a person who is from bosnia.
Let's go to the boso restaurant
by jsul May 21, 2007
Fijian word for boss. A slang word used to greet Fijians like a brother. Similar slangs like Uso (Uce) in Samoa and Toko (Doks) in Tonga
Whats Up Boso?! or Hows it Boso?
by Kai Viti January 11, 2015