Here are some possibilities, though without more information, it's hard to say for sure:
1. "Hone" as in "sharpen":
* "Hone up on something" could mean to improve or refine a skill or knowledge. This would be similar to "brush up on."
* "Hone up your game" might mean to get better at something, perhaps a sport or activity.
2. "Hone" as in "to make something smooth":
* "Hone up something" could refer to making something smoother or more refined.
3. "Hone" as in "a tool for sharpening":
* "Hone up" could be a slang way of saying "get ready" or "prepare", possibly in a context related to a task or a challenge.
4. "Hone" as in "a type of wild bee":
* "Hone up" could be a regional expression related to the bee itself or its behavior.
Without more context, it's difficult to be sure.
Please provide more information about how the phrase was used, and I can give you a more accurate interpretation. For example, tell me:
* What was the sentence or conversation in which you heard it?
* Who said it and what was their background?
* What was the topic of the conversation?
This will help me understand the intended meaning of "hone up."