Ah! Finally I have 24a. It helped to know that others did not know the word. Being extremely picky here but I would not put the word “very “ in front of small to describe the weight. I mean, we’re not talking micrograms or even mg or g here!
Catcharmer, 3d I heard/used this phrase a lot in the Midlands in the 1970s Maybe a rather old fashioned expression. I always took the p part of the answer to mean the underneath British usage of the word, but it could equally refer to the American outer item, so its origin could be either I suppose. I live in the US and often hear the term ****y from the first word of the answer, presumably a derivation.