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An idiom used to explain how a seemingly negligible or "weightless" variable can have a massive, tangible impact on an outcome.
It refers to the physics concept of radiation pressure. Because light carries momentum, the sunlight hitting a city like Chicago on a clear day actually pushes down on it, adding roughly 300 lbs of physical force to the city's total weight.
Example 1:
Person A: "I only changed a single line of code and the entire server crashed. I don't get it."
Person B: "Chicago weighs more on a sunny day!"

Example 2:
Person A: "I barely touched the gas pedal and we spun out!"
Person B: "Chicago weighs more on a sunny day, man."

Example 3:
Him: "She broke up with me just because I didn't hold the door open?"
Her: "Chicago weighs more on a sunny day."

Example 4:
"If I had found my keys ten seconds faster, I'd be here. Chicago weighs more on a sunny day."
by anonymous202997 December 4, 2025
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Sunny

Short tempered short human who thinks they will become the next yippy kaye always searching for food like and animal before hibernation a therian who is a lover of Neeshat pretends to hate Roblox and has no real friends.
Hey why u being so sunny right now.
by Neshut January 23, 2025
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Sunny Kathleen Moreira da Silva

A girl who loves a guy beginning with the letter J, yet he loves her way more.
Sunny Kathleen Moreira da Silva loves him but not as much as he loves her
by JJIKKUH February 5, 2025
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Sunny Kathleen Moreira da Silva

A girl who loves a guy beginning with the letter J, yet he loves her way more.
Sunny Kathleen Moreira da Silva loves him but not as much as he loves her
by JJIKKUH February 5, 2025
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Sunnies

Slang word for Sunglasses, mostly used in Australia.
Gary: Yo Ben, can you hand me my Sunnies!
Ben: Sure Gary, here ya go!
Gary: Thanks Ben, I sure do love my Sunnies!
by NobodySleeks27 February 21, 2025
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sunny teeth

Someone who has yellow ahh teeth
Example:

Alex: bruh you see that girl she got mad sunny teeth!!

Peter: fuck looks like she hasn’t washed them in years!
by Justhelpingrhepoor March 11, 2025
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Sunny Love

When you get pegged on a beach after a long hard fought match of Valorant.
Shut the fuck up before I fuck your dad and give him a sunny love.
by Shrewskiben August 4, 2024
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