When is lemonade not lemonade? When you’re an American in the UK.
When I think of lemonade, I think of a drink made from lemon juice and water, sweetened with sugar. I make it at home all the time. Half a lemon squeezed into a glass, a couple teaspoons of simple syrup, and water to fill it up.
So imagine my surprise when I ordered lemonade at a restaurant and ended up with something like 7 Up. I came home afterwards and consulted Wikipedia:
In the United Kingdom and some other English-speaking countries, lemonade is a commercially-produced, lemon-flavored, carbonated, sweetened soft drink (similar to lemon-lime sodas in North America without the lime).