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
Get the Slack-Jackmug. Little round ass grape lookin ass that is skinny and plays his phone too much. He plays his phone when he is on vacation with his friends. He broke his femur and never recovered all legends die on the making. R.I.P Big daddy Burns calculator 2017-2018
by Jack Burns April 26, 2019
Get the Jack Burnsmug. by Spankamonkey December 8, 2013
Get the Jack strangermug. Jack Wilson is a fucking champaroo. There is no one cooler than him. He has a gay brother named Matty who is not cool. Jack strives to achieve greatly at his school and loves English class. He is a fucking legend. He has a massive cock aswell. Jack also loves James Chapman who is his best friend.
Holy shit did you see Jack Wilson the other day? That champaroo had his dick tied around his body like a belt.
by Champaroo February 14, 2019
Get the Jack Wilsonmug. The act of a crazy buff guy sitting on a toilet in the house of a dirty mexican while receiving a blumpkin by a Wizard of Oz character (preferably the lion or a munchkin).
by BlumpkinLoverSanchez November 21, 2010
Get the Blumpkin Jackmug. A shed, shack, camping shelter, tent or other shelter which provides protection from view and privacy, when used by the inhabitant (often a teenager) to masturbate, smoke marijuana, or drink alcohol without being discovered or disturbed.
My family doesn't give me any privacy so I have to go to my Jack shack in the woods when I want to rub one out or smoke a joint.
by Johnathan J. Johnson April 18, 2020
Get the Jack Shackmug.