I encountered a new one today. New for me, anyway.
I'd like to have some milk for use at work, but prices from convenience stores are high and without refrigeration available in my truck bringing milk from home isn't an option. Canned condensed milk has to be refrigerated after opening so that was also out.
I called my wife and asked if there was powdered milk available in Japan, explaining to her why I wanted it and the refrigeration problem. She said there is no powdered milk in Japan and suggested I use"skim milk" instead.
I pointed out that skim milk would also require refrigeration. She said it wouldn't. A long discussion then ensued regarding the nature of "skim milk" and why I hate 外来語 (vocabulary borrowed from other languages).
It turns out that in Japan "skim milk" is "powdered milk". Sure enough, search for スキムミルク and what you're going to find is nothing but powdered milk products, typically with the milk fat removed. I had her do a Google image search on "skim milk" so she could see in English it always refers to a liquid product.
I had always thought that English "skim milk" or low-fat milk was in Japanese 低脂肪牛乳, which was a vocabulary item I picked up by just reading the carton. I guess they couldn't call it スキムミルク even if they had wanted to, as that name had already been taken, apparently in the years immediately after the war when lots of powdered milk was shipped here as relief supplies.