blood money noun2 •Money that is obtained at the cost of another's life.Judas: I don't want your blood money! Caiaphas: Oh, that doesn't matter: our expenses are good. Judas: I don't need your blood money! Annas: But you might as well take it; we think that you should. — 1970 •Money paid (as by a killer or the killer's clan) to the family of a person who has been killed.