What is a BigONE slang?

Could you please elaborate on the term "BigONE slang"? I'm not familiar with it in the context of cryptocurrency or finance. Is it a slang term used by traders or investors within a specific community or platform? If so, what does it mean and what kind of situations is it typically used in? Understanding this term may help me gain a deeper insight into the jargon and culture of the cryptocurrency world.