ELI5: Explain Like I'm 5

Blood libel

Blood libel is a false claim that some people make that says Jews use the blood of Christian or Muslim children to make their foods like matzah. This claim was made in many places throughout history and is extremely offensive to Jews because the people making the claim are accusing them of doing something terrible and hurtful. The truth is that Jews have never done anything like this, and it is a very untrue and unjust accusation.