Be rubbing (one's) hands (with glee) British phrase
To be filled with excitement or pleasure at something, often something that causes problems or troubles for someone else.
He was rubbing his hands with glee when he heard that I had been disqualified.
Their fans were rubbing hands with glee when I was red-carded.
I remember every one of those who were rubbing hands with glee when I fell while running in the race yesterday.
To make someone feel more confident or happy, especially when they thought that they can't achieve what they want
Happy or cheerful; in a good mood
To smile broadly
The origin of this phrase is not clear.