Okay. I can usually recognize the top of the climb... When I've been at altitude for a while, I know it must have happened a while back. I just never thought there was an acronym for it!
I suspect that there might be a bit more formality and organization to piloting, either now, or on the left side of the Atlantic, I'm not sure which. My flying in the UK is limited to only a ferry back in 1986, and a delightful flight last spring with a PPRuNer, but that was very relaxed.
Perhaps "new" flying instruction incorporates these little details, and I just missed it back in the 70's. I'll keep reading, maybe I'll learn something!
But, I still would like PPRuNe to provide an acronym list for out of towners!