What does box play mean?

Excuse me, could you please clarify what "box play" refers to in the context of cryptocurrency or finance? Is it a specific term related to trading strategies, a type of investment approach, or perhaps a slang term used within the industry? I'm unfamiliar with this phrase and would appreciate some elaboration. It would be helpful if you could provide a concise explanation of its meaning and perhaps an example of how it's used in practice.