Everything possible; the complete amount or the full extent of something.
The origin of this American phrase from the 1960s is debated, with theories ranging from the length of ammunition belts in WWII aircraft to the amount of concrete in a cement truck. Despite extensive research, its exact etymology remains one of English's great mysteries, though it clearly means 'everything' or 'the complete package.'
This phrase is a delightful linguistic mystery - despite being relatively recent and thoroughly American, nobody can definitively prove where 'nine yards' comes from. It's fascinating how a phrase can become universally understood and widely used while its origins remain completely opaque, showing that sometimes meaning matters more than etymology.
Complete word intelligence in one call. Free tier — 50 lookups/day.