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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).

jpl
jpl'ed
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.
jpl by hnkelley February 27, 2008
Related Words
JPL jplay jplayin JPlaysStuff jplayz JPLG jplmk jplovemoney jplts
Someone with a very generic English name who claims to be Asian.
Dude, no frickin way JPL is Asian!
JPL by CarltheHot December 2, 2021
A talented, sexy young man who should have gotten farther in American Idol.
JPL by Maeve R. April 16, 2004
The absolute GOAT. Insane at wrestling, skateboarding, and being an outstanding and standup guy. Probably the funniest guy you'll ever meet.
"Yo, did you hear JPL placed in states?"

"Of course he did, he's the GOAT"
JPL by Jay. Bird March 2, 2026
abbreviated version of "just playin" - similar to jk. it was originally used only online or in text messages. it's used usually by jappy or ditzy girls who want to say something catty without appearing to be bitchy.
janie: "Martha those shoes are so ugly! .... jplay, jplay!"
Martha: "you'd better be."
jplay by norrie November 10, 2008
An easier way to say "just playing" or just joking
Cindy: Johnny! Are you really taking my mom to formal?
Johnny: No Cindy, girl you know I was jplayin.
jplayin by kharagalfromsocal May 25, 2009