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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 Third Law 

Men are always right, Women are always wrong.

Exeption: When (most) men agree with the woman, in which case the woman is right.
Otherwise a paradox would be created in which neither man or woman are right.
Felice says Thomas is yellow, Thomas says he's not. Male friends agree with Felice


According to Jacob's Third Law Felice and her male friends are right. Thomas is yellow.

Jacob's Third Law 

Men are always right, women are always wrong.
Felice says Thomas is yellow, Thomas says he's not.

According to Jacob's Third Law (by Jacob, who was also a man) Thomas is right, he is not yellow
Jacob's Third Law by William717 April 8, 2009

jacob lawlor

best person ever everyone loves jacob
OMG!! he is so Jacob lawlor
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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