drop your bundle
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.
drop your bundlemainly 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 bundlepanic 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’.