Although it works, I hate this mnemonic. I didn't even grow up in a society with debutantes and chaperones! And I dislike the whole formulation! Yuck.
cuthalion and I came up with "developing" as a vastly improved replacement for the waxing moon's mnemonic, but we haven't hit on just the right companion for the waning moon. Can you help?
My most recent proposal was "chillaxin", but you can see how that isn't actually all that descriptive, and also, some people seem to object to that word on the grounds that it is stupid.