2008, Heather Tenney, LittleMissKnowitAll's Guide to Everyday Savings!, page 46:
But we do put $100 a month into an emergency fund, and another $100 a month into a “fun” fund—for trips, missions, things around the house.
2017, Kashlee Kucheran, The High Maintenance Minimalist:
You need to have a 'FUN FUND'. All work and no play is not a way to exist and thrive on this planet. A big wad of my savings ends up going towards travel (big surprise).