If you haven't been exposed to it, it's just jargon. That's the point. You are testing for jargon rather than ability.
It is the distinction between saying 'implement FizzBuzz' and going silent, and actually explaining what it is. As an interviewer it is easy to forget that whilst you may have asked a question 20 times, this may be the candidate's first encounter with your terminology.
I just googled it. Oh, I know what it is now.
If you haven't been exposed to it, it's just jargon. That's the point. You are testing for jargon rather than ability.
It is the distinction between saying 'implement FizzBuzz' and going silent, and actually explaining what it is. As an interviewer it is easy to forget that whilst you may have asked a question 20 times, this may be the candidate's first encounter with your terminology.
Steelmanning as applied to interviews, basically.