The idiom “on top of the world" means feeling extremely happy. It is often used to express a sense of great achievement or joy.
Meaning of ‘On top of the world’ Idiom in English
On top of the world
Meaning
Examples
On graduation day, John was on top of the world.
After getting the job promotion, Sarah felt on top of the world.
Winning the chess tournament made Emily feel on top of the world.
Launching a successful business made Tom feel on top of the world.
