Isn't the term "the whole 9 yards" related to football?

Isn't the term "the whole 9 yards" related to football?

The term "the whole 9 yards" came from WWII fighter pilots in the Pacific. When arming their airplanes on the ground, the .50 caliber machine gun ammo belts measured exactly 27 feet, before being loaded into the fuselage. If the pilots fired all their ammo at a target, it got "the whole 9 yards."

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