Pirate Coat Wiki What Are The Negative Symbols Of A Coat Of Arms Called? The Ones That Mean "thief", "murderer", "pirate", Etc?

What are the negative symbols of a coat of arms called? The ones that mean "thief", "murderer", "pirate", etc? - pirate coat wiki

They have forgotten their names. I am working on a school project and the need for a coat of a fictional character design.