" There are occasions, however, when even S holds a secret delight or two in the form of a pink, such as the one I found among the citations (or "cits" for short) for "sex kitten":

sex kitten
sex pot
There is no essential difference in these defs [definitions], but they're not the same. Some differentiation shd be made.

The pink was written by one of our former physical science editors infamous for commenting as brusquely as possible on things beyond his remit...

Another one of our science editors who was reviewing the batch later was apparently irritated by this note, and decided to comment on what he no doubt saw as needless meddling. His typewritten response to the note about "sex kitten" reads, "I will no doubt regret saying this but I think you have misconstrued the meaning of 'physical' science somewhere along here."

But a pink's a pink. Steve acted on it for the Tenth, adding the word "young" to the definition for "sex kitten. "

― Kory Stamper , Word by Word: The Secret Life of Dictionaries