"Goongala" is Casey Jones' battle cry. It originates from Mirage Comics, but also appears in the 2003 TV series and the 2012 TV series.

In the Mirage comics, "Goongala" is given no pronunciation guide. In the 2003 TV series, it is pronounced /ˈɡuːŋ.ɡə.lə/ (GOONG-ghə-lə) In the 2012 TV series, it is instead pronounced /ˌɡuːŋˈɡɑː.lə/ (GOONG-GAH-lə).