Визначення та значення слова «XYZ» англійською мовою

At the Fourth of July barbecue, my uncle used ' XYZ' as a discreet way to let me know my zipper was down, saving me from any embarrassment.

As we were about to hit the road on our cross-country road trip, my friend jokingly said ' XYZ' to ensure our adventure started without a hitch.