Actually, that is not the definition.Yes. It's quite obvious.
This is a post about navy seals going through hell and doing things in order to get through that hell, because they want to succeed and serve our country. Some of them die in the process, and questions are raised about that process, and those tragic deaths.
Along comes Mr. Autoerotic, hijacking the thread and yapping about what a fat ass he is, and what he ate today in order to lose his fat ass. That, my friend, is extreme narcissism.
Had you STARTED a thread about how you and your buddy Richard Simmons had a new diet and dancing routine, then of course, you would be appropriate in posting about what your diet and dancing routine was.
Please tell me you understand the irony of your post, oh stupid, angry one from Florida.