To say, "I want a cup of joe."; is the same as saying, "I want a cup of coffee."; here in the US. However, you call your cup of coffee; it's considered to be one of the most loved beverages around the world. Wherever you are in the world having your favorite cup of joe, cheers!😊☕ Below are a couple of links that I want to share; that you may find interesting, and useful information about making a perfect cup of coffee.
Why is it called a cup of joe? Nine rules to make a good cup of joe.