What is on the rocks?

"On the rocks" is a term commonly used in the context of beverages, particularly alcoholic drinks, to describe a serving style where the drink is poured over ice cubes. For example, ordering whiskey "on the rocks" means the whiskey will be served in a glass with ice cubes. This method is favored by some because it chills the drink, slightly diluting it as the ice melts, which can mellow the flavor and alter the taste experience.

The term can also be used metaphorically in different contexts to describe something that is in a state of difficulty or experiencing trouble, such as a relationship or a business. For instance, if someone says a marriage is "on the rocks," it suggests that the marriage is going through a turbulent or challenging phase.