Or the parts of the economy that are not recorded or paid for, depending on your definition of an economy.
From the Wikipedia article Non Monetary Economy:
“An Australian study (1992) determined that an estimated 380 million person-hours per week were spent on these types of unpaid activities, compared to 272 million hours per week at paid work”
Which means that unpaid work amounts to about 125% of paid work, or non paid work about is 40% larger than paid work.
See also % of paid for working time of total time
ie
the average “fully employed” person in Australia only gets paid for 11% of their time.
89% of their time is not paid for.