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Verb; To mess up the math or the numbers. In reference to a Jet Propulsion Lab space mission or two that failed due to failing to convert one set of units to another on part of the project (metric to US or the other way around).

I have to enron these papers before they find out I jpl'ed the balance sheet and I get borked.

Rudd's crew chief jpl'ed the mileage, causing him to run short on fuel and costing him the race.
by hnkelley February 27, 2008
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