Mr. Yuk The Mr. Yuk symbol has been used as a replacement for the traditional skull-and-crossbones (a.k.a. Jolly Roger) warning label for poison. This is because some young children are thought to associate this symbol with pirates and therefore may misinterpret it as an invitation to ingest the poison
Home / Questions / What trademarked image created by the Children’s Hospital of Pittsburgh is widely employed in the US in labeling of poisonous substances?