by tomahawk paul December 15, 2011

This word is used to describe a less than somewhat retarded person.Given to them because when they are usually standing around
looking into space with their mouth open and drooling on themselves.
looking into space with their mouth open and drooling on themselves.
Look at that Slack-Jawed Hillbilly standing over there picking his nose and his ass at the same time.
by Mojo Maniac August 20, 2008

To take up the slack. To pull in or make taut a loose section of a rope, line, wire, etc.
verb
1. to make tighter, or more tense or taut, as a rope; remove slack;
verb
1. to make tighter, or more tense or taut, as a rope; remove slack;
by Dingjob March 20, 2013

by Matt Harding April 14, 2008

An area of your office that pretends to be "busy-busy" working, when in actuality only catching up on Facebook and Myspace, making their weekly sporting picks, analyzing their fantasy football teams, and shopping online for Manpons (see manpon.) The productive area of the office, known as the "Engine Room" completes the majority of the work - however - the Slack-Arena is quick to take credit for this work.
A slack-arena is made up of multiple slackerinos - see slackerino
"The Slack-Arena at my office is 50% of the employees but probably only actually completes 25% of the work!"
"The Slack-Arena at my office is 50% of the employees but probably only actually completes 25% of the work!"
by NIETS January 26, 2009

by Zeta +Shaun January 17, 2008

A complete and utterly terrible handjob. One that is simply not worth the time and honestly makes one wonder what the fuck is wrong with with the human being who's head is in your lap.
Brady came back Jones' house and told everyone that Liz gave him the Slack-Jack of the century and he'd rather stick his dick in a pinecone than experience that again.
by SpamoniJones April 6, 2010
