m deffer

m is short for most or mos
m deffer is most definately

mos def is m deffer because deffer is short for definately

by 99pl April 24, 2007

deff

A shorter version of definitely .

Jessica: (Takes pencil)
Teacher: Class, pick up your pencils and begin your test.
Kathy: Oh, but i was deff using that pencil tho!

:-) , coming from a person who uses the word ALOT !

by Breezyyyy March 16, 2010

Derfla

An incredibly dimwitted individual who is incapable of completing even the simplest of tasks. This person is also extremely gullible and easily manipulated.

Damnit Bob are you going to be a Derfla all day or do you think you can pull your head out of your ass eventually?

by doughgurl June 1, 2015

most deff

most deff= most deffenitly

dewd that most deff kix ass
this most deff is the best weed in all the land!!

by Jermo January 24, 2004

deffs

abbreviation for the word 'definitely'

'Are you going to come out to the movies with us tonight'

'Yeah deffs, i would love to!'

by Millie...ew December 9, 2008

derfghmknbvbhreiiiiiiiiiiiiiijrfsgr

something someone random will type, only to randomly find this random definition written by a random person who has nothing else to do

how did you even find this definition of derfghmknbvbhreiiiiiiiiiiiiiijrfsgr?????

by soulleater.yup May 26, 2018

deffo

Kinda lame but useful and funny way of saying for sure or definately.
Also; fo deffs, def, deffy def, deffo McDefferson.

U comin tonite?
Deffo

by Jake May 8, 2005