tall tale
US /ˌtɔːl ˈteɪl/
UK /ˌtɔːl ˈteɪl/
1.
a story that is very difficult to believe; an exaggerated or incredible story
:
•
He told us a tall tale about catching a fish as big as a car.
•
Her explanation sounded like a complete tall tale.
a story that is very difficult to believe; an exaggerated or incredible story