For a thesis I got to look through a couple of things and encountered the expression "to receive a welcome shot in the arm" and now wonder what this actually is supposed to mean?
Don't worry about a German translation (even though I would be happy to get one if possible), but it's really important that I at least get to understand what this means.
Thanks a lot in advance!
PS: If possible could you please add if you would consider "to receive a welcome shot to the arm" a metaphor, metonymy, or something else?
I'm pretty sure it shouldn't be taken literal here....