Deffies

Large boobs by default on a fat girl.

"Megan has huge melons, but they're deffies"

by John Eysman August 1, 2008

deffin

To white out, to get paranoid whilst stoned

He's deffin...

by nick July 18, 2003

Aidan Duffy

A Sex God, normally known to be well endowed and usually extremely popular.

"Wow, that guys such an Aidan Duffy!"

by Alexisfuckingamazing February 24, 2009

DEFFO

Short for definately.
Said in normal conversations.

"I'm defo keen to get fucked up."

by Diego August 30, 2003

Mo Deff

Most Definetley: a saying that means most definetley. use when you are drunk,stoned or on the verge of pukeing.

Guy1:hey dude you wanna go party?
Guy2:Mo Deff man! Mo Deff!

by Garrett Silva May 5, 2005

Deffinitism

The most Magical Way of Living, and only very few can obtain the skill to accomplish it.

Justin Vowels to live life in deffinitism , beacuse only awesome people can be even considered.

by CATHERINEWASHERE April 29, 2010

Defayzer

Everything and nothing all at once.

You're a defayzer

by Lexi Bieber November 7, 2019