What is a sprint?
A sprint is a get-together for focused work on a project. Sprints are an important part of Drupal's growth, and are also a great opportunity to get involved, because others are on hand to help you contribute.
Come and collaborate in person with hundreds of other Drupal community members. And, folks curious about mentoring while at DrupalCon or organizing their own local sprint should review this video from Prague: Patch reviews & Turning regular people into mentors