estilingue
/is.tʃi.ˈlĩ.gi/slingshot
The safest nationwide word for a forked slingshot. ALiB found it in all 25 state capitals and throughout the regional studies it compared.
A pesquisa registrou estilingue em todas as regiões do Brasil.The survey recorded estilingue in every region of Brazil.
Understood everywhere in Brazil.