Fabulist is a noun that means a person who invents elaborate and dishonest stories.
Fabulist has its roots in the word fable, which comes to us from the Latin fabula (FAB oo la). It may refer either to a person who tells fables or a person who lies.
Angie’s tales of growing up in rural Montana are a bit exaggerated. But she’s such an imaginative fabulist that I don’t care whether her stories are true or not.