ball the jack

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ball the jack

Speed up. Go fast. This phrase came from the American rail industry, in which a train was nicknamed a "jack," while "highball" meant to proceed. A: "Come on Tom, pick up the pace, ball the jack, let's move!" B: "Ugh, I can't run any faster this early in the morning!"
See also: ball, jack

ball the jack

go fast; hurry. North American informal
The expression has its origins in US railway terminology, where highball is a signal to proceed and jack is a locomotive.
See also: ball, jack