Top Definition
The act of driving to solely purchase gasoline in an effort to waste time efficiently.
Friend 1: "Where's John? We were supposed to go the game."

Friend 2: "Oh, he's time-pumping again.."

Friend 1: "What the hell is the point of driving to just get gas?"

Friend 2: "No idea."
by Codester91 May 22, 2011
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