a shot in the arm Informal
Meaning: You can say something is a shot in the arm if it gives a person or an organisation renewed energy or enthusiasm.
- Getting a grant from the Arts Council was a much-needed shot in the arm for the orchestra.
- We all agree that the economy needs a shot in the arm, but we can't agree on exactly what it should be.
After a terrible start, the team was ready to quit. But after getting a shot in the arm from their coach's half-time team talk, they