ELI5: Explain Like I'm 5

Serpent seed

Serpent seed is the idea that the serpent in the Bible's Garden of Eden story was actually the ancestor of all very bad people in the world. The idea is that this serpent had a special kind of seed that was passed down through his family, and this seed can only create very bad people. So, people who are believed to be part of this special serpent seed are seen as bad people and may not be accepted by religious people.