deadman wonderland 

An anime/manga series set a few years after a severe earthquake in Japan. A floating man in a red suit comes into a high school classroom and kills all the students except for one, Ganta Igarashi. Ganta is accused of murdering all his classmates and sent to an amusement park-like prison called Deadman Wonderland, aka the most twisted prison in the world. Prisoners are forced to battle each other on live TV, have body parts removed, etc. While at the prison, Ganta discovers his "Branch of Sin," the ability to manipulate his own blood. As he learns more about this ability, he starts to realize he may finally break free, and get revenge on the Red Man that murdered his friends.

Person 1: "Have you seen Deadman Wonderland?"
Person 2: "Yes! It's so awesome and intense! I feel so bad for poor Ganta though!"

deadman wonderland by AnimeRat October 27, 2013

Deadman 

To have a sleep so deep that one is almost unconscious. A nap.

Pete had a tough day so he's going to have a deadman

Deadman by Battyguy August 28, 2013

Deadman’s Nut

The act of a man edging for a 90 day period in order to release a nut so incredibly large it could lead to dehydration, seizures, cardiac arrest, or even death. The production is so vast and volatile that others within the “splash zone “ are often left with lasting mental and physical trauma. Although warned of the possible horrors, many men still attempt the “Vikings Deed” to this very day. Legend has it that every US president is the direct product of insemination via a Deadman’s Nut.

I heard Big Jon is the 75th day of the Deadman’s Nut, I hope Cait gets her Frog Toggs in time

Deadman’s Nut by StatDaddy April 21, 2020

The Cory Deerman Effect

The Cory Deerman effect is the notion that simply being Cory Deerman causes people to like or think of Cory Deerman as a nice guy and also brings extremely good luck in all situations imaginable.

Cory just got a free milkshake and someone offered to donate their pancreas to him to cure his diabetes. It must be the Cory Deerman Effect.

The Cory Deerman Effect by kanyeworld January 1, 2017

Deadman's Dutch Rudder 

When the recipient of a hand transplant masturbates.

The poor deceased never imagined his hands would be used to perform the Deadman's Dutch Rudder.

Deadman's Dutch Rudder by Young Mr T July 27, 2016

deadmans blue balls 

When a man dies from overdosing on viagra and continues to have an erection after death.

Dude, Grandpa Joe had to have the casket left open because he has deadmans blue balls!!!

deadmans blue balls by Mandy && Tyler May 1, 2006

deadmanforsure 

A man who is about to get killed by a fellow student/colleague

"Viggi will die soon" was found written in blood on the school walls.

deadmanforsure by Eddi November 15, 2003