Meaning of the word "press/push someone's buttons" in English

What does "press/push someone's buttons" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

press/push someone's buttons

US /prɛs/pʊʃ ˈsʌm.wʌnz ˈbʌt.ənz/
UK /prɛs/pʊʃ ˈsʌm.wʌnz ˈbʌt.ənz/
"press/push someone's buttons" picture

Idiom

to annoy someone or make them angry, especially by doing or saying something that you know will have that effect

Example:
He knows how to press all my buttons, especially when he talks about my messy room.
My brother loves to push my buttons just to get a reaction.