I still remember laughing when the original "Cops" TV series came out. I think they were in FL at the time. The dispatcher would receive some info from the patrols and say "que-sell". Sort of slurred, I took some time to realize they were using the Q signal "QSL" which means "acknowledge receipt." There is a huge series of "Q" signals which were the original shorthand on Morse code landline, and later others were added for radio for ships at sea and aircraft. We amateurs use--over-use them. And many times use them in a stupid redundant manner. If I am using voice and say, "What's your QTH" what I have actually just said, is, "What is your what is your location?"
Q signals are great on CW (Morse) because they can either be a question or statement. If I send QTH ? BK that means "What is your location break" and you would come back with "QTH Coeur d Alene ID BK"
"Q" signals are also misused in ways such as "Are you running QRP? Which is a way of asking "are you running less than 5 watts transmitter power?" and funnier comebacks such as "Life is too short for QRP." QRP ACTUALLY was supposed to be used to ask "can you decrease transmitter power" and then "I will decrease power to XX" and so on. QRO is the opposite, "increase," and is also misused slang to mean that a person is running a high power amplifier.
Then there are the REALLY misused ones like "QBS". "Are you full of ****" Answer "Yes, R R, I am full of ****"
Or QLF which means "Your Morse is so bad, are you sending with your left foot?"
THAT one even made it into a flow chart in a Motorola manual. My boss and I were configuring a brand new (then) radio known as a (Motorola) Radius to take up to a hill for a temporary replacement for a customer, in order to bring a failed radio down for repair. He was having issues getting it programmed and configured (it's a repeater) and was reading the manual. Suddenly he laid over in his chair, laughing uncontrollably
The flow chart said something like
Symptom: "CW IDer is QLF"
Cause: "Operator is a LID"
This of course was an absolute joke by whoever wrote the manual.