However, this phrase is almost certainly being used figuratively.
It's likely referring to someone who is:
* Elusive or hard to find: The phrase might be used when someone is trying to get in touch with someone who is difficult to track down, like a friend who keeps changing their phone number.
* Fickle or unreliable: It could also refer to someone who is unpredictable and hard to pin down, like a romantic interest who is always playing hard to get.
The phrase is a playful and colloquial way of saying that someone is going to try and contact someone who is difficult to reach.