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15.
A noun in which you and I are impending. The onslaught of doom will be swift and... painful. The whole universe will eventually implode on us all. We are all doomed. DOOMED. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Doomed. Go home now.
You smell that, Daniel? That's the smell of doom!
by Bastardized Bottomburp March 18, 2003
 
16.
1) The seminal first-person shooter.
2) Missing a roll in a dice-based role-playing game by one.
1) "I'll frag your ass in Doom!"
2) "You needed a 14 and rolled a 13...you doomed."
by Steve H. March 18, 2005
 
17.
A subgenre of heavy metal that tends towards slower tempos, and often favors mood and feel over flashy technique. Typically it comes in two flavors, gothic and stoner, although both are heavily indebted to Black Sabbath.
by Anonymous November 08, 2003
 
18.
Psilocybin mushrooms. Hallucinogenic.
Hey dude need any dooms?
by XEXDsr July 11, 2013
 
19.
A sub-par thrash metal band...And a rapper...or something
"Ya dudes you ever listen to doom..."

"lol wut?"
by return to blankenstein August 11, 2012
 
20.
dope, super cool, awesome, legitimate, amazing and the like. can be used as a noun, adj, or verb. it's like a super word. it's the definition of cool and can be any part of any sentence you choose to use it in.
"omg that wiz khalifa concert was so doom!" & "i'm gonna go doom my biophysics midterm." & "check out this new feather in my hair, isn't it doom?"
by dpdp1010 September 14, 2011
 
21.
Poster on a stupid little message board who is the epitome of ROCKING.
Synonymous with 'cool', 'super', and 'sexy'.
"DOOM. is more super than you."
by Random October 30, 2003