It's a quite popular term, but only within media fandoms. So if you don't fancy searching for clues in each single frame of a new episode of $TV_SHOW and arguin

It's a quite popular term, but only within media fandoms. So if you don't fancy searching for clues in each single frame of a new episode of $TV_SHOW and arguing with strangers on the internet about how to interpret the exact wording in that dialogue, you probably haven't come across it yet.