If you are referring to a specific item or site, could you clarify what it is? For example:
Is it a specific magazine, video series, or website? mega big mature
Could you provide or a category for what you're looking for so I can find the right information for you? MEGA: Protect your Online Privacy If you are referring to a specific item
slang. extremely good, great, or successful. Word origin. C20: probably independent use of mega- Collins Dictionary MEGA definition and meaning | Collins English Dictionary mega big mature