Ferdef 

Abbreviated slang term for "definetely"

Similar to the usage "fosho"

Are you gonna hit up that party?
Ferdef!

Ferdef by jtmo September 25, 2008

Ferdef 

For definitely. Another option for, fer sure, and fo sho.

I am ferdef going to that show next week.

Ferdef by w007! August 5, 2008

ferderk 

A filler word that can be used as a verb, noun, or whatever you need it to be

How do you get this off? Ya know you just got to ferderk it around a little bit

ferderk by GuyInAHat February 27, 2015

Ferdifella 

One of the largest and most feared groups of online gangs. They are often referred to as a group of individuals who act as a hive mind to a leader who is often referred to as Ferdinand or, Ferd for short. Their gang symbols are personas of a bull that are known as ferdsonas. If you see one, do not interact.

Hey dude, why is there a picture of a weird bull on my screen?
Watch out, that is the Ferdifellas! Do not interact or else they will send their boss after you!

Ferdifella by Ligman June 24, 2018

ferderer 

Ferderer is the last name of someone who is an absolute G.

Don't worry, he's a Ferderer, we will lose against him anyway.

Ferderer is the last name of someone who is an absolute G.

ferderer by Bro18 September 14, 2020

ferderk 

A filler word that can be used as a verb, noun, or whatever you need it to be

How do you get this off? Ya know you just got to ferderk it around a little bit

ferderk by GuyInAHat February 27, 2015

FerdererFamily 

perfection

being with the FerdererFamily is like having a mike's hard lemonade on a 90 degree summer day

FerdererFamily by payback duo August 2, 2009