Meaning of the word "Murphy's law" in English

What does "Murphy's law" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

Murphy's law

US /ˈmɝː.fiz lɑː/
UK /ˈmɜː.fiz lɔː/
"Murphy's law" picture

Phrase

a humorous adage stating that "anything that can go wrong, will go wrong"

Example:
My computer crashed right before I saved my work—it's Murphy's Law in action.
Whenever I forget my umbrella, it rains. It's always Murphy's Law.