In 1985 the inimitable Patricia Routledge did a series of five short sketches for the BBC where she plays a woman named Kitty. Practically every sentence is a (pop) culture reference and I've been able to figure out most of them, but this one especially remains a mystery.
The video can be found here: https://www.dailymotion.com/video/x2pfkk1
She said, ‘Its Morag from the television programme, do you remember me?’ I said, ‘Yes, I do; I lent you two cotton buds which I never saw back.’ She said, ‘I’ve got the producer for you’, so I said, ‘I hope you’ve sealed the envelope properly’, which is an old golfing retort of mine. On she comes - the producer - I could hear her boiler-suit creaking even long-distance - ‘Is that Kitty?’ I said, ‘If it’s not, this cardigan’s a remarkably good fit.’ She said, ‘Kitty - do you like fun?’
What does this expression mean? The context is that she's on the phone about to have a conversation with a stereotypical dungaree-wearing, chain-smoking lesbian television producer.