The Devil is beatin’ his wife

If you live in the south and as a kid you have seen rain while the sun is out, your momma probably told you that the devil is beatin’ his wife and you were so confused. It just means it’s raining while the suns out

Timmy: momma look it’s rainin while the sun is out

Momma: ye Timmy the Devil is beatin’ his wife
Timmy: what? Why would he do that
*Timmy in surprise and very confused/conserned*