"you pull up to a full-service station, and the guy asks,"would you like the high gallon or the low gallon?"
"slang for gasoline, it goes low gallon(regular)first, then high gallon(plus) then super high gallon(premium)
""you pull up to a full-service station, and the guy asks,"would you like the high gallon or the low gallon?"" What is the definition of "gallon"?