Means you’re properly confused, like your brain’s buffering and you can’t even fake it. It’s stronger than a bit mixed up and sits closer to bewildered, stood there blinking at something that makes no sense. Use it for dodgy instructions, weird behaviour, or any moment where you’re thinking, how is this actually happening?
"Tried following the flatpack manual, but step three says insert dowel A into slot B and nothing matches. I’m baffled, mate, pass the tea."