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Sister-in-law

The woman who doesn’t come to your wedding because she has more important things to do, yet expects you to pay for half of her wedding and will upend the entire family unless she gets her way. She is usually supported by your mother-in-law who somehow always takes her side in every possible argument.
Your sister-in-law thinks she’s entitled to you paying for half her wedding yet she has the audacity to not even come to your wedding.
by Xxxxxxxxfanboyxxxxxxxxxx November 13, 2020
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sister-in-law

1. The wife of one's brother.
2. The sister of one's spouse.
My sister-in-law is a good person.
by Elivaldeq November 24, 2019
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Sister-in-law

The woman who doesn’t come to your wedding because she has more important things to do, yet expects you to pay for half of her wedding and will upend the entire family unless she gets her way. She is usually supported by your mother-in-law who somehow always takes her side in every possible argument.
Your sister-in-law thinks she’s entitled to you paying for half her wedding yet she has the audacity to not even come to your wedding.
by Xxxxxxxxfanboyxxxxxxxxxx November 13, 2020
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Sister-in-law

The person who will ruin your wedding.
My sister-in-law ruined my wedding by demanding I pay for her wedding and starting a family fight. Of course my mother-in-law took her side.
by Xxxxxxxxfanboyxxxxxxxxxx November 17, 2020
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Sister-in-law

The ultra important, high falutin, and just all around annoying sister of your spouse. She will not be at your wedding because she has more important things to do, and if by chance she shows up, she'll ruin it. She's your mother-in-law's teammate and soldier.
The ideal sister-in-law is one that resides six feet below the ground in a cemetery, right next to the ideal mother-in-law.
by Xxxxxxxxfanboyxxxxxxxxxx January 31, 2021
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sister-in-law

1- Sibling's wife.
2- Spouse's sister.
My sister-in-law is a good person.
by Wonbig October 13, 2021
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sister-in-law

1- Sibling's wife.
2- Spouse's sister.
sister-in-law.
by Simaduria July 26, 2024
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