Derf

1. To get a stamp on your completed homework.
2. To act crazy and/or insane while teaching or just talking in general.
3. To yell at one's smart board.
4. To flick off one's class.

5. To stand on a desk to feel if the air is working.
6. To teach "shit"
7. To throw markers at ghetto kids.

Person A: "Yes I derfed my homework!"
Person B: "Ugh, lucky, I skipped one problem."

Teacher: "You guys forgot your calculators?!!!!" "YOU'RE ALL LOSERS!!!!!!"

Teacher: (to smart board) "WHY ISN'T THIS THING WORKING?!"

Students: (to teacher): "Happy Birthday!"
Teacher: *flicks off class and walks out*

by calculusstudent November 23, 2012

Derf

The fake number that that idiot in iCarly thought was real.

…five, derf, six…

by TheCrimsonMystery October 20, 2015

Derf

1. The ultimate word that can describe anyone or anything. Can be used for describing how uninterested you are, your friends' personalities, music, the world, aliens, cafeteria food, etc.

2. What you name your pet when you can't think of a suitable name.

1.
Dude1: Are you okay???
Dude2: derf...

Dude1: My friends are so awesome they're derf!

Dude2: Arg!!! This country's government is derf!

2.
RandomLady: Let's name our new puppy... Derf!!!

RandomGirl: This is my pet hamster, Derf.

by Mio-chan July 11, 2008

Derf

Derf is a very powerful inter-dimensional entity that presides over all things pertaining to video games, technology, and the universal force of awesomeness. Though this is all that he is responsible for, he is still omnipotent and omniscient though usually lets its followers find their own way as long as they stay on the lighter side of morally gray. He speaks in 133t speak and internet slang, has many different personalities (one for each video game genre), and, if you do right by him in life, he will elevate you to the Emerald Arcade, where you will live among the most advanced technology, awesomest games, and a lot of other things. Hey I don't know it was a short conversation.

Dude 1: Man for a while there EA was pretty bad with their games.
Dude 2: I know I wonder why?
(burst of pixels, Derf appears)
Derf: I know I let them come under the influence of the Great Spectator for awhile.
Dude 1 & 2: Let us worship you!

by Derf's Prophet September 22, 2009

Derf

The act of Premarital dry humping. This occurs during the courting period for the LDS religion.
Hey baby girl, lemme Derf

“Jake it’s spelled derf”
“Actually there is two spellings for the word”

by durfpatroller45 May 26, 2023

Derf

A person of extremely high and incomprehensible intelligence. A genius of monumental and baffling proportions.

I wish I was just a derf. Then I would know the answers to all the questions in life.

by binchaser September 2, 2008

Derf

a fag. one who is constantly a jerk and says bad things about others. sweats profusely, especially from the palms. can be made nice by offering an ultimatum.

I hate that DERF! He always talks about "that guy" that he isn't supposed to talk about.

I hate that DERF! He is so mean!

I hate that DERF! He is writing an incredibly rude and secretive novella about me.

I hate that DERF! Today, he was so annoying I had to pencil-slap him...like 25 times.

by Novella Character #1 May 21, 2008