From "Holby City: Love Thy Neighbour (#13.16)"
[Antoine Malick has nicknamed Oliver Valentine "V1"
V1. V1 rocket! He's comparing me to a rocket! That's a *good* thing, isn't it?
[Oliver imitates a rocket taking off
V1 - also known as doodlebug. An aimless misfiring weapon of destruction responsible for the deaths of thousands of innocent civilians.
[Oliver looks crestfallen
I hadn't thought of it like that.