Someone who always backs a Kickstarter the moment it goes up, and always at the highest tier.
"Hey bro, you see that new Praxis Kickstarter?" ... "Yeah, man, I pounced on that shit instantly. Top Tier!" ... "You're such a fucking Jeffie!"

"That new RPG Kickstarter last night ... I Jeffied that shit quick!"
by zeroprep August 2, 2018
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a stupid puppet that literally cusses in every sentence and somehow its meant for kids.
jeffy: *cussing like a biker*
me: "why is this popular?"
by ur mom at ur moms house August 11, 2019
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The dingle berries that accumulate on ass hair after one has neglected basic hygiene for an extended period of time.
I've got a bad case of the jeffies, feels bad man.
by Hesanitalianguy July 14, 2018
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A lobbyist person who sucks up to Big Pharma and policy makers inside the beltway in Washington, DC.
The jeffy arranged for big tax breaks to Big Pharma for giving away libido-enhancing pills to the unemployed, 2009.
by "Norma Rae" July 27, 2009
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Commonly known in the trade as DIY carried out to a substandard condition.
Bob: 'That skirting board is hanging off?'

Ben: 'Looks like a Jeffy Job'
by C4r15 March 29, 2010
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