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an exclamation of shock, surprise, or disappointment to be used mainly by awkward individuals
"ACK! I left my wallet at home!"
by mylifeisawk February 22, 2012
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May 15 Word of the Day
A few weeks ago, no one had β€œcheugy” in their vocabulary . Now everything is saturated with the word. It’s in our heads. It’s in our homes. Everyone is asking: β€œAm I cheugy? Am I a basic ass bitch? Am I GUILTY of being cheugy?”

The proliferation of cheugy in the mainstream discourse can only be attributed to one source: mental terror. It’s an orchestrated psychological trap to make you question your tastes and interests in the eyes of others.

You are not a cheug. YOU’RE PERFECT!!!!

It is very suspicious that the cheugy mascot is a Minion, a literal cyclops, a deformed
yellow panopticon in overalls ... do not let the all-seeing eye to control you. Be vigilant. Resist cheugy psyops.
Becca is another victim of cheugy psyops. I saw the garbage truck take all her Ugg boots yesterday. She even removed β€œI LOVE The Office!” from all her dating profiles. She’s unrecognizable.
via giphy
by Callmemaybe69 May 12, 2021
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2
Short for acknowledged. When a person says something that doesn't require a response, but the person wants to let them know they recieved the message. Similar to okay, but when using okay just won't do.
Sanford: I had cheerios for breakfast today.
Stephen: I don't care
Sanford: Ack
by JesusPirate July 06, 2010
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3
Nerdspeak for "yes" or "I hear you"
Usu. used on IM by programmers
"Is the latest patch on the source server?"
"Ack"
by mistervague November 08, 2003
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4
In the TCP protocol, the receiving computer sends an ACK (acknowledgment) to the sending computer. This is basically how a coonection is established.
Sender sends 3 packets, Receiver receives 3 packets and sends "ACK 4" (meaning it received what was sent, and it's ok to send the next number or packet)
by Obi-Wan December 09, 2003
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5
airport call letters for Nantucket Memorial Airport.

Common abreviation for anything Nantucket.
Ack Attack - Have to get to Nantucket for vacation
by Chris ACK June 07, 2005
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6
a human onomatopoeic(sound)word to describe frustration or disgust.
"ACK!!! I have work today, It's going to be a bitch!"
by Emily Winters January 05, 2005
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