willy-willy

[wil-ee-wil-ee] /ˈwɪl iˌwɪl i/
noun, plural willy-willies. Australian.
1.
a severe tropical cyclone.
Origin
1890-95; of obscure origin
British Dictionary definitions for willy-willy

willy-willy

/ˈwɪlɪˈwɪlɪ/
noun (Austral)
1.
a duststorm
2.
(obsolete) a tropical cyclone
Word Origin
from a native Australian language