A word used to describe the next morning after serious drug use. Jittery, restless, a general feeling of uneasiness sometimes associated with boredness or lonliness.
"Man, all that junk we took last night has me spracked out."
by rob January 31, 2005
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combination of speed and crack, hence the name
Dude, I scored some really good sprack yesterday!
by Johnny Chimpo August 2, 2003
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SLANG; to puff; or lose ones self in an on going endoeavor.
Most tweekers sprack twenty-four-seven.
by Shelli-alleyezonme.net April 28, 2003
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The act of realising how much of an idiot you are once you understand a simple concept you never understood.
1. (person 1) OHHHH I get it now
(person 2) You are spracking.

2. I'm sprackin' brah!
by Ahomcl April 8, 2011
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the act of, or resulting artwork when having liquid shits.
"I had to piss out my ass so bad i ended up with spack all over my underwear"
"Somebody spracked all over the back of the toliet seat"
"I walked in on Henry spracking all over the floor"
by Stanley Crapper September 2, 2008
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A word that Israeli tourists use in America because they think it means something, they're not sure what it means, but think it makes them sound cool.
"I saw this guy I was dating awhile ago at a mutual friend’s b-day party. Later some of us were all gonna go to a bar together, but first I had to go drop some friends off who weren’t coming & I asked the b-day boy to come w/ me. So the guy I had been seeing saw that & then the next day writes me an email "Sprack John?" (the b-day boy). So I had to look it up on urban dictionary, lol, and now I’m confused what the hell he’s asking me!!!"
by Boring Aaron May 17, 2008
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v. to ejaculate, nut, or cum.
1. I spracked in her ass leading to the expulsion of scrog.

2. She let me sprack in her mouth shortly before making out with chris.
by TheMaskedSpracker May 10, 2010
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