"Oh, that's the sound that Darth Vader makes when he is breathing in and out.
Ohhh-ker. Ohhh-ker. Ohhh-ker!"
Just hilarious! Amazing connection and of course, we imitated Darth Vader and his breathing for about five minutes in between bouts of laughter. In the end I did share the actual dictionary definition of the word ochre, but that word, for me, will never be the same.
Picture copied from http://www.google.ca/search?q=picture+of+darth+vader&hl=