That sounds like the setup to a riddle rather than a literal object.
A classic answer to that kind of prompt is “the present moment” (or simply “now”)—because:
- It’s something everyone experiences, but it’s impossible to “find” or pin down.
- The more you try to define it, the more it slips into the past.
- Most people don’t really think about it clearly, even though it’s always there.
Another common answer in similar riddles is “time” itself, for similar reasons.
If this is from a specific meme, puzzle, or video, share the exact wording or context—you might be dealing with a trick question where the phrasing matters a lot.