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grandson-in-law

Grandchild's husband.
My grandson-in-law is a good person.
by Wonbig October 13, 2021
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Ashley in law

A person named Ashley who is your in law
Yo it's my Ashley in Law! Sah Dude!
by Ashley in Law April 27, 2017
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Steven's Law

When a piece of media (most often a show) is objectively badly written, it will garner fans anyway due to mental health awareness and/or LGBTQ representation. Some examples include 13 Reasons Why, Glee Club, and the namesake of this law, Steven Universe. It may also very well be the case that the media has some redeeming qualities, such as good character moments, or good visual composition, however these qualities are a vast minority compared to the objectively bad narratives within the show.
Person A: "I like insert media because it has gays in it!"

Person B: "Is it really good, or are you following Steven's Law?"
by currysandwhichrabbit March 21, 2022
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Husband in law

your wife X husband that is still active in the family or the scene
We had a visit from my husband in law, he tried to give me advise regarding how to treat my wife.
by Ubafool2believe February 14, 2024
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Standard Sister-in-Law Unit (SSILU) [300lbs]

Standard Sister-in-Law Unit
noun
*| \ ˈsta-ndərd ˈsi-stər-in-ˌlȯ yü-nət *
Abbreviation: SSILU
Symbol: 𝓢 or SIL

Definition:
An unofficial unit of mass equal to 300 pounds (136.08 kilograms), used to simulate high-risk, real-world human load scenarios in mechanical, structural, and transportation systems. The SSILU is commonly applied to test the failure thresholds of furniture, vehicle seats, elevators, bicycles, airline cabins, and public patience.

Etymology:
Originated in post-war American slang, the term is derived from the stereotype of a loud, heavyset female relative—often portrayed as emotionally volatile and structurally compromising—whose presence tests both family dynamics and infrastructure load-bearing capacity. While non-literal, the “sister-in-law” archetype evokes maximum physical and psychological mass concentration in civilian environments.

Technical Classification:
Measurement Type: Anthropomorphic Load Unit

Mass: 300 lbs (≈ 136.08 kg)

Field Use: Structural stress testing, emergency engineering simulation

Design Benchmark: Most consumer goods are not rated past 0.8 SSILU
“She hit the fitting room like a breaching whale—1 Standard Sister-in-Law Unit (SSILU) 300lbs in full stride, swatting children aside and hollering ‘THESE SIZES RUN SMALL!!! while nearby store associates quietly begged for a swift death
by Ludwig Von Snooterman June 7, 2025
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first cousin-aunt-in-law

1. The wife of one's grandparent's sibling's son.
2. The daughter of one's grandparent-in-law's sibling.
by Elivaldeq November 24, 2019
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ice's first law of maps

ice's first law of maps states that for every fictional map large enough, an area within it will resemble the Mediterranean even if slightly.
ice's first law of maps just look at some maps
by icesuu July 9, 2021
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