To be ‘good to go’ is to be ready: prepared, checked over and cleared to proceed. A traveller with tickets and passport in hand is good to go, and so is a repaired laptop, a signed-off project plan or a patient discharged from hospital. The phrase carries a faint air of inspection about it, as if someone has run down a checklist and found nothing wanting, which is a clue to the company it grew up in.
What’s the origin of the phrase ‘good to go’?
The phrase is American and surprisingly recent. Its key ingredient is ‘go’ used as an adjective meaning ‘in working order’, which the etymologist Douglas Harper dates to 1951 as US aerospace jargon. That usage reached the public through the space programme, where launch controllers polled each station for a ‘go’ or ‘no go’ before lift-off and gave English ‘all systems go’. ‘Good to go’ bolts a homely ‘good’ onto that same readiness sense of ‘go’.
Ask an American where the phrase comes from and you will usually be told it is military, most often that it was US Marine or special-forces slang in Vietnam. That may be so, but the claim rests largely on memoirs written decades after the event, and no one has yet produced a contemporary 1960s or 70s printing. Until someone does, the Vietnam origin is best treated as plausible but unproven.
What the record actually shows is the phrase surfacing in American street slang in the mid to late 1980s. A 1986 film titled Good to Go, a crime drama set in Washington DC’s go-go music scene, put the phrase on cinema posters. Green’s Dictionary of Slang labels the early use as US Black slang and cites the New York rapper The Real Roxanne with ‘I’m good to go’ on record in 1988, while Harper’s Online Etymology Dictionary attests the phrase from 1989. Green’s also turns up an odd forerunner in an 1834 London songbook, ‘she’s a good von to go’, though that bawdy compliment is almost certainly a coincidence rather than an ancestor.
Whether or not the armed forces coined it, they certainly adopted it. By the 1990s ‘good to go’ was entrenched in US military speech as the standard verdict on a soldier, weapon or plan that had passed inspection, so much so that it has served as the title of military memoirs and studies of Marine culture. From there it went thoroughly civilian, and it now signs off everything from software releases to restaurant orders. Everything checked, nothing wanting: good to go, much as an older generation might have said ‘hunky-dory’.