Let's assume that the Transportation Department of the City of West Blinsk runs a bus system. Let's say the fare is $1.00/$0.05, which is to say that you can board a bus for a buck, and for an additional mere nickel you can purchase a ticket (called a "transfer") that can be used in lieu of cash on a second bus ride on the same day.
Let's further assume that on one particular day, the Blinsk City Council passes an ordinance changing the transfer price to $.10, effective the first of next month. If the editors of the local newspaper have what could be called a "cash flow minimalist" editorial bias, the front page headline on the following day might read:
AUTHORITIES INCREASE TRANSFER FEE BY 100%
Since I have an annoying tendency to express concepts using analogies, I would venture that "cash flow minimalism" is to "cash flow" as "microcapital" is to "commercial finance."
If the present reader knows of a financial concept dubbed "cash flow minimalism" that has some other definition (even a slightly different one) that gentle reader is encouraged to edit this page and replace this definition of the term with the correct one.
Cash flow minimalism can be part of a strategy of economic minimalism.