This week’s idiom is It Never Rains But Pours!
Have a series of unfortunate things ever happened to you one after another? Does it feel like you are having terrible luck lately? If this is so then you could say that it never rains but pours!
The meaning of the expression is that when it rains, it rains very heavily (or pours!) and so people use it when they feel like several things are going wrong for them in succession.
So the next time you feel like you are having a spate of bad luck, you can say, “It never rains but pours!”