English

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Etymology

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From mega- +‎ gallon.

Noun

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megagallon (plural megagallons)

  1. A unit of volume equal to one million gallons.
    • 2019 August 1, Vic Williams, “Here’s A Great Golf Tip: Don’t Drink And Drive”, in Golf Tips Magazine[1]:
      This time it came up during a trip to Louisville, four days after the Kentucky Derby, where bourbon-spiked mint juleps flow by the megagallon, filling Churchill Downs’ infield with a sea of swaying, semi-conscious hell-raisers, some of whom might even be horseracing fans.
    • 2019 December 18, Joe Hyde, “Congressman Conaway Votes Against "Impeachment Charade"”, in San Angelo LIVE![2]:
      Yes, Trump is a vile creature whose presence in the Oval Office will require about a megagallon of disinfectant to cleanse it of his presence when he leaves it.