Ack

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

Ack

The natural sound someone makes when choking

Person 1: ACK ACK ACK
Person 2: Are you ok?

by Still chill still chill February 21, 2020

Ack

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

ack

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

ack

Ack is a word to describe excrement or poo. It can also be used an adjective to describe something with poo-like associations- see Acky.

Where's the toilet? I need to do an ack.
I wouldn't go in there, someone just did an ack.

by damon goss October 05, 2011

ACK

ACK is the call letters for Nantucket Airport, and thus ACK = Nantucket.

What does that "ACK" euro sticker mean? Nantucket.

by Fuzzwuzzy March 10, 2005

ACK

Used to display displeasure of having to do something you don't want to do.

Ack! Was the sound Bill the Cat made when hacking up a furball, in the cult comic, Bloom County, which Berkley Brethead drew.

"Mike you have to lead the team meeting today."
ACK!

by WTPooh November 30, 2017