The phrase "on the rocks" has a couple of distinct meanings, depending on the context in which it is used:
In relation to drinks: The most common usage refers to serving a drink, usually alcoholic, over ice. For example, "I would like a whiskey on the rocks," means the speaker wants whiskey served with ice cubes in the glass. This method cools the drink and slightly dilutes it as the ice melts, which can enhance the flavor in some cases.
- In a figurative sense: The phrase can be used metaphorically to describe a relationship or situation that is experiencing difficulties or is in a precarious state. For instance, saying "Their marriage is on the rocks" suggests that the relationship is troubled and may be approaching failure. This usage conveys a sense of instability and the potential for collapse, much like a ship that may have run aground on rocky shores.
In both contexts, "on the rocks" indicates a state of instability or challenge, whether it’s a drink served precariously with ice or a relationship facing serious issues.