Over the moon British informal
"Being over the moon" means being extremely happy about something.
He was over the moon with his new car.
I was over the moon when my boyfriend proposed to me.
Both of us were over the moon to hear the good news.
Be very happy
Used to say that life includes not only happiness but also toughness too.
Create happiness for someone
To have a successful or joyful period of time
The earliest reference in print to this phrase is from "The Coquet, or, The English Chevalier" by Charles Molloy, in 1718. However, since the 1970s, when English football managers began using it after winning matches, it has become popular.