To get off an MBA waitlist, you should immediately understand your waitlist status (opt-in or opt-out), ask for an application review if offered, write a single update letter, secure a new recommendation, gather letters of support, consider taking relevant classes to boost your GPA, retake the GMAT if your score is below 680, visit the campus to meet admissions officers, and regularly 'ping' the admissions committee to express continued interest. These steps, combined with general advice like taking a long-term view and cultivating your network, can significantly improve your chances of acceptance. The article further elaborates on each of these strategies, including understanding waitlist types, specific GMAT score considerations, and effective communication with the admissions committee.