Synonim for something that went wrong or is messed up. Something that is fucked.
When you get a virus on your computer, you can say that your computer is deefed.

There are various alterations to the word. You can simply say for example, "Computer deefed," when you need to say that you're computer is fucked.

Originated in Allentown, PA.
by Robbit August 10, 2005
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Defriended. On a social network, or in real life, removing someone from your "friends list".
"John kept making racist jokes, so I deefed him."
by justfred November 21, 2013
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1.to pwn a massive un-healthy amout of food
2. to do something almost as stupid or as stupid as someone who is mentally retarded
3. for a human to have the size of an elephant head
4. to run/to hills all summer
5.To not be able to afford something of inexpensive value.
1. Wow that dude just deefed that family sized lasagna.
2. Holy crap did you see that deefed up head, no way he'll find a fitted.
3. Yo you justed deefed that hill, your fast and in shape.
4. Man be real, quit deefing around about how you were fuck buddies all summer.
by ddub September 4, 2008
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"Where were you yesterday?" "I was at the zoo checking out the deefs!" "AWESOME!"
by Admiral Dude Kiss May 8, 2008
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The Deef is a very plump and chubby creature bred in the outer islands of Costa Rica. It is said to be very rare, and once any mammal consumes its eggs, that mammal will be granted three wishes. Bob Ross is said to have faked his own death to settle down in Canada and create the biggest Deef farm known to man. 35 known Deef are currently held in captivity in the lowest level of the White House, level -147. The government is experimenting with cross-breeding the Deef to maximize the egg's power before growing and releasing the population back out to the wild.

Any known information about the Deef status can be posted in "The Deef Forums" on Reddit.
The Deef are escaping captivity and overthrowing the government.
by SpicyOnion_23 January 5, 2023
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To dry hump, more or less have sex with clothes on. Mormons like to deef so that they can nut without having actual sex. Deef sessions are typically 1-3 hours. Widely known in Utah county, Utah.
Deef me?”

“How far did you go with John?” “We deefed
“You wore jeans? That’s like the number one rule of deef! You have to wear leggings or sweats!”
by Analjames December 29, 2017
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