I'm pretty sure the double entendre here was unintentional. Fair enough if they are not hip to that particular scene at TJ Maxx or Filene's Basement or whatever elegant emporium of frugality I was visiting when I took this photo.
But this? That phrase doesn't seem very marginal. This is suspect. (Photo from www.wantthelook.com. FYI, I don't think I want the look of Hand Relief.)
And I think this is perhaps a colloquial issue.