tall tale

This expression carries a lighthearted, often whimsical connotation. It describes stories that are intentionally exaggerated for entertainment or to impress others, rather than malicious lies intended to deceive for personal gain. It is frequently associated with folklore, sailors' yarns, or childhood bragging.

Because it is a compound noun, it follows standard countability rules. While the individual components "tall" and "tale" have their own meanings, the phrase functions as a single semantic unit meaning an improbable story.