The phrase "aggressive savers" refers to people who save money enthusiastically and consistently. They are proactive and determined about putting aside a significant portion of their income for the future. Full definition
Among the most aggressive savers with over $ 100,000 or more, 34 percent had a plan. (nbr.com)
Frugal from the days when they did not have much, they have been aggressive savers, putting $ 9,566 each month into RRSPs, TFSAs and ordinary (business.financialpost.com)
To that end, she is an aggressive saver and investor. (moneysmart.gov.au)