The comparative term to the male "cock block." It means to effectively stop a female companion from getting laid.
I was gonna bring this hot guy back to my apartment, but my bitch roommate decided to pull a clam jack.
by Lon October 12, 2005
by Jeff/Matt January 18, 2004
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
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 19, 2010
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
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