This is not an ordinary dictionary. After all, you wouldn't expect an 'Oxford Roald Dahl Dictionary' to be ordinary, would you? Lots of dictionaries tell you what an 'alligator' is, or how to spell 'balloon' but they won't explain the difference between a 'ringbeller' and a 'trogglehumper', or say why witches need 'gruntles' eggs' or suggest a word for the shape of a 'Knid'.