It means that you are very happy.
The idiom "sitting on top of the world" means feeling extremely happy, successful, or content, often as a result of achieving a significant goal or experiencing a positive change in one's life. It conveys a sense of elation and satisfaction, as if one has reached a pinnacle of success or joy. This phrase is often used to express an overwhelming sense of well-being and triumph.
england
acceptable
AQ grey & dull place
Passive isolationism to global pro-activism
It's called an idiom. This means that the phrase is not to be taken literally and that it has another meaning. Since the phrase starts with "on", it's also a prepositional phrase.
The phrase "on top of the world" is an idiom. It means that one is feeling wonderful or fantastic. If someone is "sitting on top of the world" it means that they are rich or in an advantageous position.
Urbane
The phrase "top yourself" originated in British slang, meaning to outdo or surpass oneself. It is often used in a competitive or self-improvement context.
do not really know, other that it is an archaic upper class phrase, obviously meaning the best
Ack-Emma is the phrase that means in the morning and was used during World War 1.
Top of the pileBest of the bestTop notchPremium
Yes, the phrase "I'm on top of the world" is a metaphor. It is used to express a feeling of happiness, success, or achievement, comparing the feeling to being in a position of dominance or superiority.
being on top of the world.
being on top of the world.
"Hard on" means right on top of -- as in "hard on the heels" means right on top on one's heels, or behind one. The phrase "hard on" is also a slang term meaning that a man is sexually aroused.
Monde means "the world" As in the phrase "tout le monde" meaning all the world.