A Jimmy Job is when you do something on the rush, in other words, an improvised thing. A more formal equivalent expression would be To do something on the run
In Sense8 Season 2 episode 3 when Sun was breaking out of prison Nomi and her friend Bug were trying to hack the system, then Nomi asked bug :

Nomi: Bug?
Bug: I got something. Bit of a jimmy-job
by Plitz June 16, 2018
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Getting a hand job with a condom on.
Jared: “Hey Dan, how did last night go with Liz?”
Dan: “ We went to her place and she gave me a Jimmy Job.”
Jared: “Jimmy Job? What’s that?”
Dan: “ She slipped a condom on and jerked me off. She said she didn’t want to get her sheets stained.”
by Nabrueman December 28, 2018
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Another name for condoms. Used in the presence of parents, younger siblings or children, other adults etc.
The name comes in two parts.
Jimmy just a name to alliterate with job plus it's a male name.
Jobs which mean they are doing a particular job.

You wont believe what i saw Jack buying today... some Jimmy-Jobs!
by romanticheroine April 10, 2008
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