It was just a nonsense thing that Fred Flintstone would say because he was happy – " Yabba dabba doo." I don't know if a lot of people would recognize that anymore.
Dabba is a South African company that is pioneering the establishment of village telcos. It uses wireless technology to provide voice and data services to under-serviced areas. Dabba has developed a distributed community based ownership model that encourages local entrepreneurs to provide telephone services not served by fixed line telcos at affordable prices.