jeffin' 

the act of kissing ass or brown nosing in a persons face when in actuality you have ill feelings toward that person.

being really nice to your boss to get that new opening that you want but behind his back you talk shit about him.

you - "hey boss did you get a new hair cut it looks great"

your boss - "bitch, stop jeffin'"

jeffin' by t-ryder January 27, 2009

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.

Jeffin' by BasedButt March 2, 2023

Jeffin' 

The act of kissing ass and/or brown nosing in a person's face when in actuality you really have ill feelings toward that person.Also, this is Kansas City Lingo, but a humongous single. Jeffin' is ass kissin', then talkin' trash, dissin'.

When you see me rolling up, stop Jeffin' stop Jeffin', they be like what's up? Stop Jeffin' stop Jeffin', yeah you. Stop Jeffin', we ain't cool. Stop Jeffin'.

Jeffin' by the_waitresss October 29, 2011

Jeffin' 

Hitting the whip and the nae nae with MAXIMUM proficiency.

Person 1: "Yo, did you see Jeff Jeffin' at the party last night?"

Person 2: "Holy shit yeah! it was awesome!"

Person 1: "He did it so productively."

Jeffin' by tybler June 26, 2023

Jeffin' 

Outdoor activity in Jefferson County Missouri, the greatest fucking county if them all. Often involves consumption of cheap beer (normally Busch Light). Most of these activities would be illegal anywhere else, but not in JeffCo, where you can do whatever the fuck you want.

Get the Beer Andy, lets go Jeffin' tonight!

Jeffin' by Bardbarian53 June 25, 2017

jeffin' 

The evolved word of "joking" with the slight different first name style change.

Larry: I bought a 2004 Dodge SRT-4 for just one hundred bucks off some old lady.

Hilary: No way!

Larry: I'm just jeffin'.

jeffin' by Elizabeth L. January 25, 2005

Jeffin 

Jeffins are one of the most kind boys you'll ever meet. They are sweet, caring, and actually care about you. Jeffin's are different from any other boy, they don't care about looks or body. They'd never ask for nudes. They are very protective of their friends. They are a little quiet and can keep to themselves but are overall just weird, awkward and the most fun. Jeffins make the best jokes. no cap. They will make you laugh until you're crying. They know the most random facts. They also always know the right words to say to calm you down. You can always confide in them and they will only confide in you if the really trust you. They might seem weird at first but give them a chance, they may surprise you.

Person 1: "Did you see that weird dude Jeffin today? Why was he rambling on about some random fact?"
Person 2: "Man, you don't even know him. He's actually pretty cool once you give him a chance."

Jeffin by avgwhitegurl September 17, 2019