plugin multiple assign problem

plugin multiple assign problem

hey guys i made my own simple plugin which can be seen here:

https://jsfiddle.net/bgc329mL/

when assigning my drop down plugin to selectors I'm unable to get both of them to work

  1. $('.mutliple-select-dropdown').drop_down(); // not working
    $('.dropdown2').drop_down();  // working


the colour drop down works as it should be the one above doesn't...i used "this" in plugin also.

why isnt both drop downs working and how can i make it so both do please?

thank you guys