Definition of shout ?

In Aussie drinking culture, a shout isn’t yelling—it’s buying a round. It’s basically an unspoken contract of friendship: you get this one, someone else gets the next. A person who dodges their shout is instantly sus and might get branded a bludger. It keeps the drinks flowing, the vibes high, and the group united. If someone says “your shout,” they’re either reminding you politely or calling you out loudly.

It’s your shout, mate—don’t be a bludger.