Meaning of the word "or what" in English

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

or what

US /ɔːr wʌt/
UK /ɔː wɒt/
"or what" picture

Phrase

used to ask if the opposite of what has just been said is true

Example:
Are you coming with us, or what?
Are you going to finish your homework, or what?