Reminds me of a conversation that I heard reported many years ago, but I have no idea if it's true, between a BA 747 and ATC
ATC: Traffic Information, a C404 2 o'clock 5 miles same level, are you visual?
Pompous Speedbird: What's a C404? Oh, my first officer tells me we had one in the flight deck once and we swatted it.
W