"The ball is in your court" is an idiom that means it is your turn to take action or make a decision. The phrase is often used in situations where two or more parties are involved in a negotiation or discussion, and one party has made a proposal or presented an idea, and it is now up to the other party to respond.
The origin of this phrase is believed to come from the game of tennis, where the ball is hit back and forth between two players who are trying to score points. When the ball is in one player's court, it is their turn to hit the ball back to the other player.
In a business or personal context, "the ball is in your court" can be used to indicate that the responsibility for the next step or decision lies with the person being addressed. For example, if an employer offers a job to a candidate and asks them to think it over, they might say "the ball is in your court now." This means that the candidate must decide whether to accept the job or not.
Saying "the ball is in your court" is a polite way to shift responsibility and create a sense of urgency for the person being addressed to take action.