What does the term "on the rocks" mean?

The term "on the rocks" specifically refers to a drink that is served over ice. This is a common way to enjoy various spirits and cocktails, as the ice not only chills the beverage but can also slightly dilute it as it melts, enhancing the flavors. Bartenders frequently use this terminology so that customers can easily communicate their preferences for how they want their drinks prepared.

Serving a drink "on the rocks" generally implies that the drink should be poured over ice cubes in a glass, allowing for a refreshing experience while maintaining the integrity of the spirit or cocktail.