Jeff Plewman (March 26, 1948 – May 10, 2014), better known by his stage name Nash the Slash, was a Canadian singer-songwriter and musician. He was best known for being the founding member of the progressive rock band FM and performing with British musician Gary Numan. He was also a multi-instrumentalist who played mostly the electric violin and mandolin, as well as harmonica, keyboards, glockenspiel, and other instruments.