Meaning of the word "in your dreams" in English

What does "in your dreams" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in your dreams

US /ɪn jʊər driːmz/
UK /ɪn jɔː driːmz/

Exclamation

used to tell someone that what they want to happen is very unlikely or impossible

Example:
“I’m going to win the lottery.” “In your dreams!”
You think you're getting a raise? In your dreams!