kys is an acronym that stands for: K̲iss Y̲our S̲ister
Anon #1: Why do other anons keep telling me to, kys? What does it mean?
Anon #2: They want you to, kiss your sister! >-<
Anon #1: Oh cool, I'm going to go kms!
by Anon987987448 February 21, 2021
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Awwww! A very cute acronym for "Kiss your sister"!
(On a family meeting)
Father (to son) : KYS! It's so cute!
Son : ahem... No.
Father : It stands for "Kiss your sister"!
Son : Ok...
by Homie Box March 15, 2018
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The shortening of "Kill Yourself". Can be used in a variety of ways, such as genuinely telling people to do just that, or as a joke to friends.
Mean way >:( :"Kys, no one loves you bro."
Nice (sort of): "Lmaoo, kys"
by Velkann November 9, 2023
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Ak: Omg I love smuts!!

Hu: Bitch kys
by ur wife who is candice November 26, 2021
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The ultimate roast to completely break down somebody's anti roast system
Person 1: hey Johnny
Person 2:kys
Person 3: .......
by Fatbong January 16, 2019
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-Man can I kiss you?
-No homo, kys
by durelek January 16, 2023
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Meaning, kill yourself", or someone threatening to kill you yourself
"I want to kys"
by -Browni3- May 25, 2023
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