ambigram: girlfriday

A word - of many - which got life thanks to a writer's flash of inspiration. Daniel Defoe's timeless classic Robinson Crusoe introduced the world to Man Friday, the character so called because he was discovered on a Friday. The name later became an expression to describe a male personal assistant or servant. Before long, the term 'girlfriday' came into use to describe a female equivalent.

Butterfingers' song Girlfriday: original version & acoustic version.