To Mess something up causing damage of varying degree. One can jimmie up nearly anything from a household object to a body part. Often things that become jimmied up are related to negligence or inattention to the task at hand, however responsible adults can also jimmy something up by mistake or overuse.
I jimmied up you transmission Rob. I don't know what happened.
by Jpizzel September 11, 2013
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1.To use ones head to engineer a solution to an existing problem,
2.to illegally configure something for ones advantace
both usually done by irish or scotts-men as they just seem to be good at that stuff
1.Sean- "Hey Stewie, how are you mounting your speakers on the wall?"
Stewie- "I jimmied-up some shelves from some scrap paper and used an old shoe string to support it."

2. "Wow those fuckers jimmied-up some cable over there, meanwhile use douches are payin hard"
by Laga February 18, 2005
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To "man up", to become brave. To stand strong against some form of adversity.

A saying coined by Latoysha, in Woodtown, a hood in Oak Cliff, TX
"You better tell him to Jimmy Up and bust that dude in the mouth!"
by DreamGyrl360 November 15, 2007
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A Vandergrift Casino Theatre prank used to make freshman stage crew people go insane trying to find out how to "jimmy-up the mack". Bottom line: the "mack" that needs to be "jimmied-up" does not exist!
Cast member: "Go jimmy-up the mack, Bob"
Bob (first year stage crew): What the heck is a jimmy-up the mack!

Cast member: Just go do it!

Bob: What is it!

Cast member: The show will be ruined if you don't jimmy-up that mack! Now go!

Bob: but!....but!

Cast member: GO!
by Rekced Yrrek December 2, 2006
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A hot rod car (an automobile modified for racing but driven on public streets) of General Motors manufacture.
They drove their souped-up jimmy down to New Orleans.
by ozarque October 5, 2009
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