Deff 

Slang for shitting; refer to “defecation”

Dude, don’t ever eat those sugar-free gummy bears. I ate a whole bag and “deffed” my pants out of nowhere the other night. I picked the wrong time to wear my new mesh pajamas.

Deff by Star_Index_Media November 21, 2024

Deff Totes 

An abbreviation for "definitely totally" in other words, a term of agreement

Isa: want to go to the party with me?
Lilly: Deff Totes!

Deff Totes by Lilly Abree April 13, 2007

Deff-fuck

Definition: Anything that fits the description of deff-fuck

E. G
"I was in a library one night, and as I was searching for my keys which I left somewhere between the books, then I saw this girl and she was the deff-fuckest girl I've ever seen"
" What a deff-fuckable guy he is"
" Imma commence repentance before I get deff-fucked by this epidemic that's diffusing recently"

Deff-fuck by momo252598 February 22, 2020

deff out 

A state of paranoia brought on by excessive alcohol or substances use.

That last pint made him totally 'deff out'.

deff out by Grizlord October 3, 2006

deff out 

to leave your friends to hang out with your boyfriend of girlfriend.

As soon as she started going out with Tony she completely deffed out and left Amanda.

deff out by maggie February 25, 2004

deff reject 

to have your deffinitions rejected by urban dictionary, then get pissed off.

omg why does urban dictionary have to deff reject me?

deff reject by brick tamblan June 11, 2006

Deff Twapp 

to be cool
opposite of crap
deff= deffinitly twapp
twapp= cool

wow thats so deff twapp
your sweaters deff twapp

Deff Twapp by Avery Wheaton September 19, 2007