get someone's goat

US /ɡɛt ˈsʌm.wʌnz ɡoʊt/
UK /ɡɛt ˈsʌm.wʌnz ɡoʊt/
"get someone's goat" picture
1.

to annoy someone very much

:
His constant complaining really gets my goat.
It really gets my goat when people don't clean up after themselves.