In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler. A repunit prime is a repunit that is also a prime number.
A MegaFlush can be performed when competing (in teams) towards getting the most work units done in a distributed computing project.
To perform a MegaFlush one can use processing power to calculate work units months before a competition starts. When the competition begins the work units are submitted and thus count for the competition. This is used to give yourself or your team an unfair advantage.
Any one team that performs a MegaFlush will be banned from the contest.