Why is it called Needles in my sleeve?

So, you're probably wondering why "needles in my sleeve"? Well, first let me preface with, I am terrible at coming up with names for things like this. This is actually a very bad habit I have developed. I tend to put my needles in my t-shirt sleeve if I am changing threads or just need a place for a needle. The problem is that I usually forget I put it (them) there. I found one in the lint catcher in my dryer yesterday. I had 2 in my sleeve tonight but thankfully remembered to put them in my needle holder; what an idea!