Years ago... Back when I drove a Truck for a living, I once had this conversation on CB Channel 19 (The Truck Drivers channel in the USA)
While I was driving through downtown Nashville TN, some girl started yelling at me on channel 19...
She said, "Hey Miller! (I drove for Miller Truck Lines at the time..) are you a 10-4 truck driver?"
I said, "What in the hell is a 10-4 truck driver?"
She said, "That's a Driver that's got 10 inches long and 4 inches around. Now do you understand what a 10-4 truck driver is?"
I said, "Five-Two"