Mostly because I have previously read this:
In today’s modern Galaxy there is of course very little still held to be unspeakable. Many words and expressions which only a matter of decades ago were considered so distastefully explicit that, were they merely to be breathed in public, the perpetrator would be shunned, barred from polite society, and in extreme cases shot through the lungs, are now thought to be very healthy and proper, and their use in everyday speech and writing is seen as evidence of a well-adjusted, relaxed and totally un****ed-up personality.
So, for instance, when in a recent national speech the Financial Minister of the Royal World Estate of Quarlvista actually dared to say that due to one thing and another and the fact that no one had made any food for a while and the king seemed to have died and most of the population had been on holiday now for over three years, the economy was now in what he called “one whole joojooflop situation,” everyone was so pleased that he felt able to come out and say it that they quite failed to note that their entire five-thousand-year-old civilization had just collapsed overnight.
But even though words like “joojooflop,” “swut,” and “turlingdrome” are now perfectly acceptable in common usage there is one word that is still beyond the pale. The concept it embodies is so revolting that the publication or broadcast of the word is utterly forbidden in all parts of the Galaxy except for use in Serious screenplays.
There is also, or was, one planet where they didn’t know what it meant, the stupid turlingdromes.
“I see,” said Arthur, who didn’t, “so what do you get for using the name of a perfectly innocent if slightly dull European country gratuitously in a Serious Screenplay?”