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 07, 2010
Slack-a-lack-jack
Means, roughly, "Please endeavor to give me the personal space that i desire while i'm buying, selling, distribting, or using crack cocaine." Old Phoenix (AZ) slang.
Means, roughly, "Please endeavor to give me the personal space that i desire while i'm buying, selling, distribting, or using crack cocaine." Old Phoenix (AZ) slang.
by East Bay Vinny November 17, 2004
by BILLY BILO August 03, 2005
He's been lookin' at magazines for 20 minutes! Our plane leaves in 15. Go tell him get the slack out of your jack!
by Phrisbeephreak July 14, 2010
Friend 1: "dude where were you? there was a math test that was 90% of our grade!"
Friend 2: "Oh I was slacking and jacking"
Friend 1: "oh ok that makes sense"
Friend 2: "Oh I was slacking and jacking"
Friend 1: "oh ok that makes sense"
by Viperlord#0382 November 26, 2022