jacob's 

Cockney Rhyming Slang for Testicles.....origin : Jacobs Cream Crackers (Knackers) - Jacobs Cream Cracker Biscuits perhaps the best known of all UK plain Cracker Biscuits

'Do exactly as I ask, or I'll cut your f*cking Jacob's off!"

jacob's by Boxhead Of Oz August 23, 2016

Jacob S

King. Always the best. Very good looking. Better than everyone called Ed.

Hail Jacob S.

Jacob S by Ollie James March 30, 2021

Jacob S. 

A person who cannot be enslaved because of his independence and has beaten a xander in a boxing fight.

You guys seen Jacob S.?

Jacob S. by Kaisiwisiixiwujwkxod September 7, 2023

Jacob's Law 

This is a fundamental law of manhood. Jacob's Law is that when referring to ones penis in a jokingly or flirtatious manner, you must portray it as smaller than it actually is. This means you never let a girl down once in the sack.

Originating from the Australian outback at Jacob's Creek hence the name

Matthew: I was chatting to this girl last night and ended up having sex
Ben: ah nice, did you use Jacob's Law?
Matthew: yeah for once a girl was fine with my average sized penis

Jacob's Law by ciy June 14, 2020

Jacob's Law 

During a board game, a player, who has played the game more than once, cannot change their decision for a more advantageous one, once they have finished their turn. A turn that is over, is over!!!

Player 1's turn ends... During player 2's turn, player 1 says... " NO WAIT... I did not mean to do that." Player two says, "Jacob's Law"

Jacob's Law by mmaerzluft February 1, 2022

Jacob's Law 

The scientific law maintaining that you can only do something not stupid for so long. Inferring that no matter how well things are going, something stupid is bound to happen.

Perry: "Jacob is doing really well so far..."

Nick: "Don't worry, he'll mess things up, it's Jacob's law."

Jacob's Law by LazySour February 3, 2008

Jacob’s Ladder 

Jacob’s ladder is a metaphor for an existential dilemma based on a perceived future being unseen to previous awareness, because each part is tied in place, ideally the way the toy works is a top plank cascading into the others all mechanized by the interweaving ribbons.

“That movie she showed us, Jacob’s Ladder, was pretty intense,”
“Yeah, seemed like a real mind f**k,”

Jacob’s Ladder by Oneyouknow July 23, 2018