a far-fetched or improbable story

एक असंभव कहानी

English Usage: Everyone knew that his explanation of how he lost his job was just a tall story.

Hindi Usage: सभी को पता था कि कैसे उसने अपनी नौकरी खोई, यह केवल एक असंभव कहानी थी।

a story that is exaggerated or hard to believe