Hi boys and girls,
complying with your demand for more "catch phrases" of those I use in class, here is a link to the meaning and origin of these reduplications. As you will see there is much more than the "willy nilly, shilly shally, easy peasy and ockey dockey" that you hear in class...:)
Enjoy the link
http://www.phrases.org.uk/meanings/reduplication.html