noun a used match split to hold the butt of a partially smoked marijuana joint. Many musicians take names from drugs slang, but the reverse happened here. Jefferson Airplane was a successful San Franciscan rock band associated with 1960s drugs culture and psychedelic culture. The name, a humorous coinage for an imaginary blues musician, Blind Thomas Jefferson Airplane, was first given to a dog; only later to an improvised DOG END holder US, 1967