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(1) Any doomsday catalyst; any precipitator which brings about cataclysmic, apocalyptic change -- yes, Virginia, THE END of the world, Armageddon, "that's all she wrote", APOCALYPTIC #FAIL!

(2) The Unholy Grail of overzealous scientists who in the thoughtless pursuit of "pure science" unwittingly create a doomsday device.

(3) Specifically, the fictional doomsday catalyst envisioned by Kurt Vonnegut in his novel "Cat's Cradle." Ironically, the inventor of Vonnegut's "ice-nine" never intended his creation to be used as a doomsday device; this shortsighted scientist only foresaw "ice-nine" being used for the ploddingly pedestrian purpose of making it possible for combat Marines to march over mud in much the same manner that Jesus is said to have come striding across the tempest-tossed waves of the Sea of Galilee (Matthew 14:24).
EXAMPLES:

(1) ' "Suppose," chortled Dr. Breed, "there were many possible ways water could freeze. Suppose the ice we skate upon -- what we might call ice-one -- is only one type of ice. Suppose water always froze as ice-one because it had never had a seed to teach it how to form ice-two, ice-three, ice-four? Suppose there were one form, which we will call ice-nine -- with a melting point of 130 degrees. " '

-- "Cat's Cradle", Ch. 20

(2) ' Breed asked me to think of Marines in a swamp.

' "Their trucks are sinking in ooze."

' He winked. "But suppose one Marine had a capsule containing a seed of ice-nine, a new way for the atoms of water to stack and lock, to freeze. If that Marine threw that seed into the nearest puddle . . . ?"

' "The puddle would freeze?" I guessed.

' "And all the puddles . . .?"

' "They would freeze?"

' "You bet they would!" he cried. "And the Marines would rise from the swamp and march on!" '

-- "Cat's Cradle", Ch. 21

(3) ' "I keep thinking about that swamp" I said. "If the streams flowing through the swamp froze as ice-nine, what about the rivers and lakes the streams fed?"

' "They'd freeze."

' "And the oceans . . . ?"

' "They'd freeze, of course," Dr. Breed snapped.

' "And the springs . . . ?"

' "They'd freeze, damn it!" he cried.

' "And the rain?"

' "When it fell, it would freeze into hard little hobnails of ice-nine -- and that would be the end of the world!" '

-- "Cat's Cradle", Ch. 22
Ice-nine by Dinkum August 20, 2013
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Ice Nice is a kind of ice (according to Kurt Vonnegut's book Cat's Cradle) that will turn any other liquid material at room temperature into ice with the same properties...

and because of that it is capable of destroying life on earth
Free bag of Ice-nine with 6-pack
Ice-Nine by Vaskafdt June 24, 2007
The name of one of the best, if the not the best unknown bands out there. They are seriously a great band to listen to when you just want to mellow out, jump around, or listen to a damn good band!
Did you see the Ice-Nine show last night? It was fuckin awesome!
ice-nine by terd April 25, 2005
A name for a smokable form of meth
ice nine is whack. dont ever try this shit
Ice Nine by Niac January 25, 2005

Ice Nine Kills 

One of the most amazing bands in the underground scene
as of yet, mostly undiscovered, but gaining their own cult following
responsible for some very awesome songs like
"The Greatest Story Ever Told" and "Last Words"
a band that will definitely go big
Woah, "The Greatest Story Ever Told" by Ice Nine Kills just blew my mind

Ice Nine Kills 

The best heavy metal band I’ve ever heard. I’d suggest checking these guys out if you haven’t heard of them. Yeah they might seem quirky but they’re pretty good.
Person A: Hey have you heard of Ice Nine Kills?
Person B: Yeah, I prefer Set It Off though.

Ice Nine Kills 

One of the most amazing bands in the underground scene
as of yet, mostly undiscovered, but gaining their own cult following
responsible for some very awesome songs like
"The Greatest Story Ever Told" and "Last Words"
a band that will definitely go big
Woah, "The Greatest Story Ever Told" by Ice Nine Kills just blew my mind
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pod person 

A person pretending to be something they aren't, or an impostor. This is inferred because of the old alien movies where alien pods appear on earth and the "pod people" dispose of the humans and slowly reproduce the bodies, pretending to be humans.
The pod person was pretending to be my father, but I knew that he was an alien when he acted differently than my father ever would have.
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Word of the Day on November 10, 2026
A dead drop is a location used to secretly pass items between two people, without requiring them to meet.

Spies have been known to use dead drops, using various techniques to hide the items and to signal that the drop has been made. Drug dealers use this as well.

A common place is to duct tape the item to the underside of a toilet cover in a public restroom.

A signal is sometimes used as well to indicate there is something to pickup, like a pile of stones in a certain formation. After checking the drop the signal is removed.
"The dead drop is the restroom toilet at the Gulf station at the corner of Commercial Ave. and Georges Rd."
dead drop by rubberroom July 23, 2008
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No Surprises Wedding

A "No Surprises Wedding," or NSW, is a wedding invitation designation that tells attendees that there can be no unplanned announcements, engagements, events or speeches at the wedding - all actions must be pre-approved by the couple. Anyone who performs an unapproved "surprise" will be asked to leave the wedding early.

This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
You are cordially invited to the nuptials of Brian and Tom on October 31 at noon.

Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
Word of the Day on November 8, 2026
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"
ulzzang by `r i k kit t y February 26, 2008
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