There is also a steam engineers term called "high-balling" which referred the little ball in the steam pressure gauge used in the early days. So high-balling was travelling at high speed.
plausibly related to a "high ball" (cocktail glass shape, or slang for a personal-use amount of cocaine)
plausibly related to a "high ball" (cocktail glass shape, or slang for a personal-use amount of cocaine)