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shot in the arm, a

Idioms  
  1. A stimulus or booster, something vitalizing or encouraging, as in Getting a new concertmaster was a real shot in the arm for the orchestra. This colloquial expression alludes to a stimulant given by injection. [c. 1920]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It made getting a shot in the arm a really pleasant experience!

From Seattle Times • May 16, 2021

He is getting a shot in the arm, a transfusion of hot red blood from a vitality more abundant and intense than his.

From Time Magazine Archive