A portmanteau of "Job" and "Hobby"; usually derived from the fact you live paycheck to paycheck in a capitalist hellscape, Your Hobby becomes a source of side-hustle income that you tend to rely on, rather than it simply being a way to relax and gain enrichment as a human.
Ironically, as a nod to the definition across the pond, it does, in fact, feel like shit.
"I like to crochet, but in the winter it becomes my Jobby."
"Nah, that's not a serious vendor, thats someone with a Jobby. if theyre still here and selling in 3 years, then theyre serious."
an item in which the name or function is unbeknownst to (or has been forgotten by) the person uttering the term
“I twisted the dilly-doo until the thingy lined up with the whosie-whatsit and wouldn’t ya know it. The dingus got all gashnitzed and gashnizzled and the jobby-joo went wizz-bang out the back. Please forgive me if I’m getting too technical for you. It’s just that I’ve been workin’ in the doojigger biz since I was knee-high to a whatchamacallit and I rarely interact with you civilians.”