A shout can be a stress reliever in other English-speaking countries, but a source of stress when used in Strine, particularly for the parsimonious. But a shout is also an archetypal Strine term.
Meaning in Japanese
Meaning in U.S./British English
But the meaning in Strine is....
Treat (in turn). To pay for something, frequently a drink (alcoholic beverage) or meal. To pay for someone else