The growing library of books by Matthew.
The Fictional Dictionary of Bad Language
A collection of words that can safely be used when bad language is needed but real swearing is not acceptable.
Sometimes, in fiction writing, you need a suitably exotic insult or swear but for reasons of readership, self-censorship or design the use of swears and insults common to your culture are not suitable for your characters to use. After all, we all swear but sometimes in creative fiction, while a situation may call for a good cathartic outburst, the language usually reserved for it is not available.