"RV cam" ...... huh?

Some people just use terminology that they have heard from others without actually knowing what it means.
I had a '78 Trail Duster in for an emissions test and it was over the limit. The Service Advisor asked..."Does it have a cam in it?"
Of COURSE it does. It wouldn't run at all without a camshaft.
I knew what he meant but it was a weird way to ask if the engine had an aftermarket cam.