There is an old proverb in English about how the opening of the leaves in Spring can tell us how much rain we will have in the Summer. It goes:

　　If the oak comes before the ash, we are in for a splash.

　　If the ash comes before the oak, we are in for a soak.

　　“Oak” and “ash” are the names of two common trees. If the new leaves open on the oak trees before the ash trees, then we will have only a little rain, a splash. But if the ash leaves come first, then we will have lots of rain, a soak.

　　The proverb says “in for a splash” and “in for a soak”. “We are in for….” something means “we are going to have or experience …” something.

　　I might say, for example, “I am in for a difficult day at work today”.

　　Or, “My wife is in for a surprise – I’ve bought her a present.”

　　Or my wife might say, “He’s in for a shock – I’m pregnant!”

　　A terrifying thought!