deathmaster 

1) The character in a role-playing game who is extremely effective in combat.
2) A video gamer who regularly lays waste to all of his opposition.

"Mike was kicking my ass in Halo 2 - he's totally the deathmaster."

deathmaster by Steve H. March 18, 2005

deathmatter56 

a weird guy on youtube who attempted to break the world record for kicking his head over and over again. his videos are special, meaning "brain draining".

p1: " hey did you see the new deathmatter56 video?"
p2: " yeah, it sucked."

deathmatter56 by creepy carrie April 23, 2009

deathonsteroid 

Deathonsteroid is more of a adjective than an everyday term. It can refer to the drug Death but with assorted steroid drugs, but most commonly means someone who can't figure out how to get good and gets stuck in low ranks.

Noun: Dude, try this deathonsteroid. When I took it, a dragon's ass came from Mars and blew up New York City.

Adjective: Lol, look at this kid playing Brawlhalla over here. 200 wins and he's stuck in Silver. What a deathonsteroid.

deathonsteroid by a random pseudonym of mine June 9, 2018

Deathwater 

Deathwater began when the Mist from Stephan King’s story was herded to Texas and milked, producing normal-seeming vitamin water. But after three minutes on contact with air, it turns black. And all those medicinal properties? They go to Hell. It will kill you. But first, you throw up 600 pounds of bricks! Luckily, you don’t notice because you having a high big enough to fit two 747s, six eighteen wheelers, and an elephant. Then you die.
Besides the Mist, Deathwater comes in two other flavors: Chuck Norris Sweat and Chuck Norris Urine. Deathice is also in the works, which is described as being like ice-skating on sand paper.

“If you buy Deathwater, you won’t have to worry about the economy. ‘Cause you’ll be dead!”- Greenwood

“I welcome you!”- Satan

“I got Damascus Fever! Could Deathwater cure it?”- Last of a series of Deathwater references in trail logs along the Appalachian Trail approaching Damascus

Deathwater by Gobba42 May 16, 2010

Deathjester 

The art of aggroing a full room of mobs in a massivly muliplayer online game and being the only survivor. "made famous after the Libary room incident"

Ack, that was a Deathjester, can you please res us now.

Deathjester by DJ Whitefire July 16, 2008

datemaster 

An object such as a club or brick used to get a girl in the mood for romance.

The Datemaster 9000 is an aluminum bat with an optional foam silencer.

The Datemaster 750 SS is the old school Louisville slugger.

Things got off to a rocky start with Cinnamon, but after I reached behind the couch and grabbed my datemaster it was bing, bang, boom let's go back to my room.

datemaster by buckfutter November 9, 2004

Deathtastrophe 

A death that is catastrophic.

The Holocaust sure was a deathtastrophe!

Deathtastrophe by Takita Kitaki March 6, 2009