Spouse's great-great-grandparent.
My great-great-grandparent-in-law is a good person.
by Gerald128 April 7, 2021
Get the great-great-grandparent-in-law mug.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
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
Get the Standard Sister-in-Law Unit (SSILU) [300lbs] mug.As an online discussion continues with multiple posters, the likelihood of a person making assertions that the Jews are behind whatever is being talked about exponentially grows.
1: Why are people freaking out about this Tea Party rally?
2: It's the media man, the liberal media.
1: Yeah they're always looking for Nazis.
3: Of course they are. Look who own the media! Follow the Jewish trail, they're the source of fake news!
2: Niwdog's Law...
3: What do you mean?
2: Never mind.
2: It's the media man, the liberal media.
1: Yeah they're always looking for Nazis.
3: Of course they are. Look who own the media! Follow the Jewish trail, they're the source of fake news!
2: Niwdog's Law...
3: What do you mean?
2: Never mind.
by somedude24 September 3, 2017
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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.
by icesuu July 9, 2021
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Get the Husband in law mug.step-first-cousin-once-removed-in-law.
by Simaduria July 27, 2024
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