"Wow that woman was such a Karen"
"Um, excuse me, I have a sister named Karen and you should stop using that word."
"Don't be such a Karen's Sister."
"Um, excuse me, I have a sister named Karen and you should stop using that word."
"Don't be such a Karen's Sister."
by MrMcMander November 20, 2020
Get the Karen's Sistermug. My sister-in-law is a good person.
by Wonbig October 13, 2021
Get the sister-in-lawmug. Sister Jonathan is a nickname for Jon Guelas , member of the english band United Vibe , that has been gaining popularity between fans of the band and also with some of the X Factor 2018 members.
by sister 5.0 November 3, 2018
Get the Sister Jonathanmug. 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. by RhodyRhodesRhodesia October 27, 2021
Get the Eats his sistermug. Well, I tried to make it Sunday, but I got so damn depressed
That I set my sights on Monday and I got myself undressed
I ain't ready for the altar but I do agree there's times
When a woman sure can be a friend of mine
Well, I keep on thinkin' 'bout you
Sister Golden Hair surprise
And I just can't live without you
Can't you see it in my eyes?
I've been one poor correspondent
And I've been too, too hard to find
But it doesn't mean you ain't been on my mind
Will you meet me in the middle?
Will you meet me in the air?
Will you love me just a little?
Just enough to show you care?
Well, I tried to fake it
I don't mind sayin', I just can't make it
Well, I keep on thinkin' 'bout you
That I set my sights on Monday and I got myself undressed
I ain't ready for the altar but I do agree there's times
When a woman sure can be a friend of mine
Well, I keep on thinkin' 'bout you
Sister Golden Hair surprise
And I just can't live without you
Can't you see it in my eyes?
I've been one poor correspondent
And I've been too, too hard to find
But it doesn't mean you ain't been on my mind
Will you meet me in the middle?
Will you meet me in the air?
Will you love me just a little?
Just enough to show you care?
Well, I tried to fake it
I don't mind sayin', I just can't make it
Well, I keep on thinkin' 'bout you
Sister Golden Hair surprise
And I just can't live without you
Can't you see it in my eyes?
Now I've been one poor correspondent
And I've been too, too hard to find
But it doesn't mean you ain't been on my mind
Will you meet me in the middle?
Will you meet me in the air?
Will you love me just a little?
Just enough to show you care?
Well, I tried to fake it
I don't mind sayin', I just can't make it
And I just can't live without you
Can't you see it in my eyes?
Now I've been one poor correspondent
And I've been too, too hard to find
But it doesn't mean you ain't been on my mind
Will you meet me in the middle?
Will you meet me in the air?
Will you love me just a little?
Just enough to show you care?
Well, I tried to fake it
I don't mind sayin', I just can't make it
by Death Menace April 26, 2023
Get the Sister Golden Hairmug. 
Get the step-co-sister-in-lawmug.