jeffing

Verb - when someone says they will show up to an event, then does not.

Jeff is jeffing on my birthday party.

by MissLG November 20, 2011

jefficiency

A jankety version of efficiency where a person thinks that the way they do things is efficient, but in truth, is actually ineffective to a point of incompetency.

Their jefficiency is slowing us down. I can't believe they actually do it that way. It's like saving an email to your desktop for future use that has a link in it. Then opening the email, clicking the link, and closing the email every time you need it rather than just creating a shortcut.

by carasone November 15, 2015

Jeffie

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

jeffist christ

A godly professor at Missorui S&T. No other professor can compare and he is a true god when it comes to chemistry.

Also known as Jeffist Christ.

Dave: Yo, do you know Dr. Jeff?
Robert: You mean the one and only Jeffist Christ?
Dave: Yes! All hail, Jeffist Christ.

by calc2atmstislife January 21, 2020

Jeffing

The act of sending unintelligible, often misspelled, texts that are chock full of grammatical errors and acronyms that only have meaning to people named Jeff.

Stop Jeffing me, I have absolutely no idea what that text means.

by Blindmelon February 17, 2021

jeffthekillerfan100

a cool alt tiktoker

have you seen jeffthekillerfan100’s new video?? they’re so hot

by kurapikaa February 7, 2022

Jeffin'

When your gut begins to throw a temper tantrum. Starting with biohazardous farts and slowly building to a terroristic level shit.

Dawg, I was in the middle of class when I started Jeffin'. It was brutal. 6 people died. I'm probably going to jail.

by BasedButt March 2, 2023