Definition 1: A supposed town in Germany that doesn't actally exist.
Definition 2: The gray and white squares in a digital canvas that only have transparent objects in front of them.
(Definition 1) Person A: "I'm from Bielefeld"
Person B: "No you're not. Bielefeld doesn't exist.
(Definition 2) Peron A: "What are those gray and white squares in this image?"
Person B;"It's the bielefeld. It shows that there isn't anything drawn over it."
A beautiful town in westfalia, known for its pudding factories and failing soccer team, where people speak true in very short sentences.
Also, the conspiracy theory is getting kinda old.
A: Hey, where are you from?
B: Bielefeld.
A: Ok, so how are you?
B: Good.
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B: I hate rhinelanders. They talk to much. I like Bielefeld. People don't talk much here.
Fictional town in Germany. No roads lead to Bielefeld, no railways either. It does appear on maps, but no-one has ever been there or knows someone from Bielefeld.
It might be a code name for some secret militairy project.
Everybody who claims to be from Bielefeld or to have ever been there is part of the Bielefeld-conspiracy (German: Bielefeld-VerschwΓΆrung)