razor grinder

Meanings

1. A large brown cicada, Henicopsaltria eydouxii, of eastern Australia.

1. A professional who sharpens and shapes razor blades and other metal tools using grinding and polishing machines to achieve a fine edge or surface finish; now largely replaced by automated machinery, it was historically known for being physically demanding and dangerous, with high mortality rates due to equipment failure and health issues like grinder's asthma.

Etymology

From razor + grinder