Feed Bags

I just heard that term used in two different contexts within the same day.

The first context was a "new dad bootcamp" program offered by the local hospital. They referred to my wife as a feed bag.

The second context was the lawn fertilizer I bought for my yard.

Having a baby and fertilizing my yard are both brand new experiences for me. Since they were both new things, I guess was keen towards the new lingo. Feed bag wife. That's new. I'd heard about fertilizer before.