jeffin

a constant flake, or someone who flakes repeatedly

That fool is a jeff, he never pulls through when he says he will.

That fool is jeffin, he said he would be here hours ago!

by 1904LxVE April 28, 2011

Jeffin

When a man pee's sitting down while straddling the toilet.

I caught my friend jeffin last night, how awkward...

by Matron Malice July 1, 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."

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!

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'.

by Elizabeth L. January 25, 2005

Jeffin

Jeffin: someone who is so enamored with another person to the point that they are kissing up to them uncontrollably in the presence of other people. The are always praising this individual, or flattering them for anything they do especially when the least effort is put forth. Also can be used for someone who is continuously sucking up to someone.

Damn bro Everytime this dude comes around, and tells one of his dry ass jokes you always Jeffin for him. Just chill bro.

by Tommy & Timmy B April 3, 2019

Jeffin

A name given to a child by his parents. Commonly used in India.

Hey Jeffin, how are you doing?

by Jeffin itself. October 24, 2018