It's important to note that this is just the most common meaning. It's possible "K Y" could be used in other contexts, such as:
* Initials of a person's name: For example, someone might refer to a friend as "K Y" if those were their initials.
* An abbreviation for a specific term: It's possible "K Y" could be used in a particular industry or field as an abbreviation for a technical term.
To know the specific meaning of "K Y" you need context.
Can you provide more information about where you encountered this term? This will help determine the intended meaning.