the sound your cat makes when it vomits
by UR MOM GAYYYYYYY March 8, 2018
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ack is a term to describe that incredibly uncomfortable feeling you get when a situation is horribly embarassing and/or awkward.
'that party SUCKED, there were about three people there! i was like "argh, ACK!"'
'and then, i threw up all over his shoes. so ack.'
by maya and catherine September 3, 2005
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The sound you make when you choke on soda.
Ollie: Marco are you ok?
Marco: ACK ACK ACKK
by I'll eat your lamp shade August 25, 2020
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The sound a girl makes when she chokes on a guys skeeze.
Guy: "im gonna cum"
girl: "ACK!!"
by NBPplaya June 23, 2006
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1) (adj.) Being as high off of marijuana as the famed Rob Ackerman. 2) (v.) The past tense process of smoking. Synonym with smoked, bowl, weed, kush, etc; terms deriving from marijuana and marijuana paraphernalia.
1) "Bro you cannot possibly be acked." 2) "We acked a few bowls ma nigga." 3) "Yo man I'm tryna rock out, did you bring some ack?"

*note one cannot reach the level of Ackerman
by Jujuthegiant November 10, 2013
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The sound you make when you get your colon rammed by a one eyed snake.
Snape: Bend over, Malfoy
Draco: ACK!!!!
by AAAACCCCKKKK July 27, 2007
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It is like hacking, but acking allows you to forklift cars into the water, Use your phone to drive the car out the water, hack everyone's phone to make sure they don't vote for Donald Trump, and even 3d print lethal weapons while making sure DEDSEC's enemies (I'm talking the NSA, the reptilians, their fierce competitors anonymous, and Donald Trump) doesn't find out.

The term was first coined in the watch dogs 2 world premiere announcement e3 2016. Some of the developers still aren't fully comfortable with the new term, but the creative director for watch dogs has already fully adopted acking into his vocabulary.
"It starts with reality...but in reality acking and people who break systems are pretty creative naturally."

"Why hack one when you can ack them all?"
by BRAM June 15, 2016
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