Mnemonic device
From Speedsolving.com Wiki
A mnemonic device is a method used to help with better memorization of a set of information. In cubing, this is typically used for events in which the solver is solving blindfolded: BLD, 4BLD, 5BLD, and MBLD. It is also used for unofficial blindfolded events such as 6BLD, 7BLD, Megaminx BLD, 4x4x4 MBLD, etc., as well as in non-cubing situations where one would need to short-term memorize a set of information fairly quickly.
Some examples of mnemonic devices are acronyms, songs, letter pairs to create a story, etc.
