What are cream cakes? Are they normal cakes with a cream filling, or is there something different in how they are made?
Since terminology is part of the discussion, "shag" is not only a type of rug and a term used by Austin Powers, but is a swing dancing variant that I first heard of as being popular in the Carolinas during the 1950s and 1960s. I learned how to dance the shag at my cousin's 16th birthday party, but I don't remember how to do it now.
There is also the term "shagging balls", which refers to the retrieval of baseballs during batting practice, and I have heard used for other sports as well.
Metric/English--in most common usage, I use the English units of measure, but when it comes to engineering or medicine, I have heard and used the metric terms as often, if not more. The oddity comes in aviation, where there is temperature in degrees Celsius, barometric pressure in inches of mercury, velocity in knots (nautical miles per hour), and distance in either statute or nautical miles, depending on what you are referring to. Then there is fuel, which can be measured in gallons, pounds, or hours on the same aircraft.