To pretend to be dead. To lie down in a manner in which someone would be presumed dead. Usually done with a group of friends for comical reasons or just out of plain boredom. In order to successfully Dead you must have a picture taken of the person Deading and the Dead must be named.
Let's all just start Deading in the elevator.
Bro I'm about to pull off a Dead Elevator, you down?
by mustbenew September 17, 2011
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Dude 1: Yo why isn't Frank talking to me anymore. It's been 10 years.
Dude 2: Frank's been dead for 10 years. You killed him.
Dude 1: That explains why I'm in this jail cell.
by Riley Freemen June 18, 2014
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if you are murdered via karma you become dead dead, meaning you die on earth then go on to die in heaven
You’ll be fucking your bitch and I’ll pull up with a glock like this a America boom, and yo ass dead dead.
by Nichols1 March 3, 2019
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N.Irish term for all right, satisfactory, of sufficient quality.

or

Someone who is alright, doesnt annoy you at all and generally tries not to piss other people off.
"How was the meal?" "Dead on?"

"What's jonny like" "Aw he's a dead on fella"
by Chris May 23, 2004
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The act of cutting off all communication with someone
"I can't believe she's just deading me after we'd been friends for so long."
by CentaurCat January 28, 2017
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when something is really fun and you "die" laughing. something that's worthy of dying of laughter. or something that makes you die of laughter.
karla: i totally just fell down the stairs and dropped all my cereal.

sasha: #dead

OR

karla: oh my god! mr. v gave out 3 essays due tomorrow! he really expects us to do alla this?

sasha: #dead

karla: how's that funny?

sasha: it's funny because he thinks i'm gonna do all that work
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