drop (one's) bundle

To experience heightened anxiety or begin to feel hopeless. Primarily heard in Australia, New Zealand. Don't drop your bundle—we'll find a solution to this problem. I'm not surprised to hear she dropped her bundle—she did just get a terrible diagnosis from the doctor. When I saw just how much money the company was losing, I definitely dropped my bundle.

drop your bundle

mainly AUSTRALIAN, INFORMAL

If someone drops their bundle, they lose all hope or lose control of their emotions. At 25-6 University were losing badly, but to their credit they did not drop their bundle. If I had dropped my bundle, it would have hurt a lot of people.

drop your bundle

panic or lose one's self-control. Australian & New Zealand informal

This expression comes from an obsolete sense of bundle meaning ‘swag’ or ‘a traveller's or miner's bundle of personal belongings’.