Sprog isn’t a word I’d choose to describe any baby but words alone are never really an issue in my opinion. Frankly I think objecting to certain words per se all gets a bit snowflaky and daft. However, words do count when they’re used, in context and tone, to denigrate. Had diddly said, ‘How lovely. A new little sprog’, the chances are no one would have turned a hair - but she didn’t. She used the word to emphasise her vitriol towards the Prime Minister - and that’s just plain nasty.