The phrase Ich bin Nelly Fentanyl circulates mainly as a standalone soundboard clip rather than from a widely documented film or show. Shared in short form German meme spaces, it spread through reposts where the joke is simply hearing the unexpected name out of context. Its short length and clear delivery made it easy to download, loop and insert into other videos. It remains in use because the deadpan introduction works anywhere a fake identity or absurd reveal is needed, without requiring viewers to know any backstory.