Skinny

I've just got back from a trip to the coffee place, where I asked for a skinny iced coffee. That is, an iced coffee made with skimmed milk. When I received the iced coffee, it had a scoop of ice cream in it, and was topped with whipped cream. Now, I ask you, what part of 'skinny' did they not understand? How could the word 'skinny' possibly be construed as anything but low fat?

I'm tempted to complain. In fact, I think I will. I'm going to write to the coffee shop in question, and inform them of this terrible mistake. Oh I'm going to make them sorry they ever opened...