Aussie Aussie Aussie, Oi Oi Oi
"Aussie Aussie Aussie, Oi Oi Oi" is a cheer or chant often performed at Australian sport events. It is a variation of the "Oggy Oggy Oggy, oi oi oi" chant used by both football and rugby union fans in Great Britain from the 1960s onwards.
Source: Wikipedia — Aussie Aussie Aussie, Oi Oi Oi (CC BY-SA 4.0)