It implies that you are:
* Prepared: You have done the necessary work to be ready for the challenge.
* Focused: You are committed to giving your best.
* Confident: You believe in your abilities and are ready to succeed.
The phrase is often used in competitive contexts like sports, business, or even a job interview. It can also be used in casual situations to encourage someone to put in their best effort.
Origin:
The origin of the phrase is uncertain, but it is believed to have come from sports, where players would bring their "A" jersey for important games.
Examples:
* "We need everyone to bring their A game if we want to win this tournament."
* "This is a big presentation, so make sure you bring your A game."
* "I'm feeling a little nervous about the interview, but I'm going to try to bring my A game."