Arguably, it simply means, "temporarily performing the duties of."
- Lance Bombardier - Temporarily performing the duties of a Bombardier on the way to becoming a Bombardier when one can then instruct another L/Bdr to, "temporarily perform the duties of...."
- Archaically, a long, pointy stick wielded from the back of a horse - superseded by the bayonet - and a defining attribute of various Christian Saints (St George, St Barbara, and St Michael among others)when represented in art.
- Gay-looking nuclear missile system, replacing the Honest John, operated by 50 Regiment RA during the 1970s & '80s. Launched from a tracked rubbish skip.