back forty
(redirected from BACK 40)Also found in: Financial.
back forty
Sprawling, uncultivated acreage, as would be found on a farm. I often go to the back forty of my property when I need some quiet time to think. Did you see the land behind the house? The dogs would love to be able to run around the whole back forty. I think Dad's out in the back forty right now.
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