Essentially, if you are looking to "complete" the post, you simply post the filename as-is to confuse your friends into clicking a "broken" image that doesn't exist.
The text is typically the punchline or the entirety of a "meta" social media post designed to look like a technical error. received_676037964181098.jpeg
The "complete post" usually consists of just that filename, sometimes accompanied by a caption that plays along with the joke of a "failed" upload. Here is how it is commonly used: Essentially, if you are looking to "complete" the
"I can't believe he actually did it received_676037964181098.jpeg" "Mood: received_676037964181098.jpeg" received_676037964181098.jpeg