Swift emotional movements of limbs and torso.
An unskilled tap dancer pushing her ungainly feet to exhaustion to the embarrasment of all.
by Jerome Nyssen July 7, 2005
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The term 'Spack' is used to describe someone who above all else, proven to be exceedingly dimwitted, this person isn't a few sandwiches short of a picnic, oh no no no, they forgot the whole fucking picnic basket.

This is an insult best used on friends or people who you know know the definition of it, because when used on an actual Spack, they will not know the sheer gravity of the insult that has been dropped upon them due to their lack of intelligence, and therefore the impact of the insult is lowered significantly.
by SnexuSakesGlaz May 11, 2021
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A SPACK is a one time use pack, small enough to fit in your going out bag and contains a mini toothbrush, toothpaste, 2 makeup removing cleansing wipes, a deodorant cloth and a hair-tie. all the essentials a girl on the go needs to keep clean. It's perfect for a sleepover, weekend getaway, business trip, party or after the gym.
Are you going out tonight? Don't forget to Pack a Spack
by onthegogirl February 1, 2015
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To Spack upon Someone/something
*Nightro Spacks on Spackles*
by Det October 19, 2003
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The sound that a blast of cum makes when hitting a hard surface, such as a bathroom tile floor.
The spack of that hot guy's load on the bathroom floor startled him.
by Wordmaster B December 28, 2005
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The act of infiltrating comprised computers used to send spam and disabling the spamming facilities and or entire machine.
Along with some spammy SMTP headers and my sshd logs, I found a bunch of hosts for a spacking expedition.
by lagshot April 30, 2010
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