What is the meaning of idiom- tall talk?

"Tall talk" is an idiom that means exaggerated or boastful talk. It's often used to describe someone who is telling stories that are clearly untrue or greatly embellished.

Here's a breakdown of the meaning:

* Tall: Refers to something being unusually large or high, suggesting an exaggeration.

* Talk: Means speech or conversation.

Examples:

* "He was full of tall talk about his fishing trip, claiming he caught a fish the size of a car."

* "Don't believe her tall talk about being a famous actress – she's just a cashier at the supermarket."

Essentially, "tall talk" is a way of saying someone is "blowing smoke" or telling "tall tales."