derff 

My friend made this word up and it's really funny and it has no meaning have a good day

Lmao derff you

derff by Derffmaster800 December 31, 2016

Defferson

adverb. a synonym for the word definitely. used to express complete agreement or strong affirmation.

guy #2: dude you wanna come to my party, it's gonna be super sick!
guy #1: defferson!

Defferson by Brent Handles January 23, 2009

derfing 

Aggressively grinding each other while making out.

Abby was derfing so hard last night with him.

derfing by yunglivin September 1, 2019

musical attention defficit disorder

People with a musical attention defficit disorder have a tendency to switch every (or almost every) song they listen to midway through (if not before that).

Also abreviated to M.A.D.D.

I'd swear that John has a Musical Attention Defficit Disorder. When I was listening to his MP3 with him earlier, he couldn't stop song skipping! It drove me nuts!

musical attention defficit disorder by K!tah76 April 5, 2009

Dreffie 

A nickname for people by the name of Jessica, Dressica or Jeff.

Hey Dreffie!
My name is not Dreffie!
Yes, it is.

Dreffie by Gilie42 January 25, 2010

Derf 

The act of dry- humping while fully clothed.

He came mid-derf. Must be mormon.

Derf by Noelmiller24 September 13, 2019

deffynition 

The definition a person defaults to that is more so a take or spin on the official written word which tends to add flavour and/or character to said 'defined' word's understanding for people locally involved.

"Carol's deffynition on the matter is not the same as yours. Her upbringing and use of Internet memology has caused her to have a slightly different opinion on what you think the definition actually is for the rest of us *here*."

"Kevin's deffynition of sperg not only implies that a person might have Asperger's but also includes the idea of *them* usually trolling streamers on Twitch in a way that garners a streamer's attention, in a spastic sort of sense."

"Urbandictionary.com is at the core of the Internet's play of deffynitions. It's better understood nowadays that there is not only one given definition for everyone and everything at all times."

deffynition by Hybrix July 8, 2021