absence of rules . . . wholly grail for a Subgenius
by CruiserBob September 18, 2008
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The absence of rules. Especially dogmatic or stupid rules that constrict freedom in modern humans. Slack in it's purest form is freedom.
Give me some slack . . . Jack!
by Vidaddy September 28, 2008
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Slack can be a short of SLACKWARE,
Slackware Linux, the kernel or operating system or os.

www.slackware.com

Slackware is the greatest Linux distribution ever!
- Are u using windows xp?
- Yeah :-(, it can't be any worse! How about u?
- Well, I'm using Slackware Linux! It doesn't blue screen like windows! HAHA Windows Sucks!
- Yeah it really does!
by POE December 24, 2003
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An adjective that describes any orifice that has seen copious amounts of penis or similar object (e.g. broom).
Alan: Good Lord! Your bumhole is extraordinarlily slack, I doubt my penis would even touch the sides.

Jill: What can I say, I like penis.
by DaftusCuntus September 27, 2009
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Slang for the prescription anti anxiety medication xanax.
Damn, that chick was all zipped up on the slacks. It's no wonder she can't remember what happened last night.
by red rob September 23, 2010
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Veniecia's was wearing slacks today.
by Kumquatolian October 27, 2005
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