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A person who refuses to do something that might or might not be illegal simply because of the perceived implication that it is. This individual will often "call out" another person for performing said illegal behavior. He/she might also report illegal behavior to the popo.
ME: Hey G, want to take David to go gang banging?
FRIEND: Nah Cuz, Dave be a mega fucking Law Dog holmes.

ME: Hey man, want to shoot off some illegal fireworks?
LAW DOG: No way, those are illegal for a reason. They could hurt someone you know?
ME: Alright, then screw off.
LAW DOG: If you shoot those off, I'm going to have to report it. Sorry bro, but laws keep this country together.
Look, Gio, here comes my girlfriend, the law dog
law dog by eric b. February 5, 2003
law dog by ryan February 5, 2003
When a dog falls asleep on ones lap, one is not allowed to move or disturb said sleeping dog.
I can’t make breakfast because Fido is asleep on my lap; I cannot break dog law.
dog law by DogLawAbider February 10, 2018

Buckley's Hot Dog Law 

Two hot dogs are never enough, yet three hot dogs are always too many.
Campbell thumbed his nose at Buckley's Hot Dog Law when he reached for his third hot dog. He would soon regret this decision.
To urinate on something or someone to claim ownership
"Dude you cant just Dog Law my Girlfriend"
Dog Law by Wyatt vontiglehooten August 15, 2025
More from Urban Dictionary
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

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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