The idiom "get someone's goat" means to annoy or irritate someone. It is used when someone does something that bothers or upsets another person, causing them to become angry or frustrated.
The origin of this idiom is not clear, but one theory is that it comes from horse racing. It was believed that goats were used to keep racehorses calm, and if someone wanted to sabotage a horse's performance, they would steal the goat to upset the horse. Therefore, "getting someone's goat" became a phrase to describe intentionally annoying or frustrating someone.
In modern usage, the idiom can be used in a variety of situations. For example, if someone keeps interrupting you while you are speaking, you might say, "They really get my goat when they do that." Or if someone is constantly making noise while you are trying to work, you might say, "They're really getting my goat today."
Overall, "get someone's goat" is a common idiom that is used to describe situations where someone is intentionally or unintentionally causing annoyance or frustration to another person.
• The loud music from my neighbor's house really gets my goat every time.
• The way my boss criticizes my work in front of everyone really gets my goat.
• The fact that he lied to me about his past really got my goat, I can't trust him anymore.
• The latest decision from the government really got the opposition's goat.
• The way he always brags about his achievements really gets my goat, it's so annoying.
• My sister always gets my goat by taking my favorite toys.