the.com/bring home the bacon

means To earn money for your household, usually by working a job — i.e., be the one who pays the bills.

from The real story is murkier than the folklore. One popular tale claims it comes from a 12th-century English village custom (the Dunmow Flitch) where a side of bacon was awarded to married couples who didn't fight for a year and a day — but the phrase itself isn't actually recorded until centuries later, so that link is likely retrofitted charm, not origin. Another theory ties it to greased-pig contests at country fairs, where catching a slippery pig meant winning it as a prize — 'bringing home the bacon' as literal trophy-hauling. What's certain is that by the early 20th century, with bacon as a common household staple and stand-in for provisions generally, the phrase had settled into its modern sense: to earn the money that keeps the household fed.