Can you elaborate? What is this?

I interpreted it as a joke. Elmer Fudd is a cartoon character.

https://en.wikipedia.org/wiki/Elmer_Fudd

Elmer Fud is a character from the Warmer Brothers Bugs Bunny animated series of children's cartoons and used as a mnemonic device. I assume the ELMER acronym is some set of metrics used to judge the validity of a claim to determine if it is FUD or not.