tall tale

US /ˌtɔːl ˈteɪl/
UK /ˌtɔːl ˈteɪl/
"tall tale" picture
1.

夸张的故事, 天方夜谭

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.
他给我们讲了一个关于钓到一条汽车那么大的鱼的夸张故事
Her explanation sounded like a complete tall tale.
她的解释听起来完全是天方夜谭