yes.
so what about eselsbrücke?
any english word for eselsbrücke out there?
donkey bridge.

http://en.wikipedia.org/wiki/Earworm
http://www.wordspy.com/words/earworm.asp

it's called mnemonic or memory aid.
donkeybridge is way cooler. most obviously.

http://owad.de/owad-learningtips.php4
http://en.wikipedia.org/wiki/Mnemonic