Check out these handy “Guide to British Slang” and “How To Swear in British” lists! They are perfect for if you’re writing British characters or just want to understand British language better or go to Britain and swear at people properly, lol. Here is the list of 100 British slang words or phrases that have been alphabetized for convenience:
And here is the list of British swear words:
33 dogs dinner – complete opposite actually. Looks bad!
Was just going to write the same thing.
From the second list, consider that many of the personal insult terms vary according to your relationship to the person. Some that would be cause for a serious fight if applied to someone you didn’t know well would be a term of affection when applied to close friends. Best to avoid though if you’re not very familiar with usage. Also, the word Bint, which was borrowed from Arabic, is not one I’ve heard used as a negative term in about 30-40 years. One might use it as a form of affectionate abuse with a very close female friend, e.g. if she’d done something very silly but amusing you might laugh and say “daft Bint”. Again, best to avoid unless you are very familiar with usage