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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half-co-sister-in-law

Spouse's half-sibling's wife.
half-co-sister-in-law.
by Simaduria July 27, 2024
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The sacred sister law

The sacred sister law states that “If you find news or information that makes you feel uncomfortable, you must share it to your sister”.
The sacred sister law: Brit and char are sisters. Brit found a video about an onion that made her feel uncomfortable. Brit shared the video to Char.
by Shhhitsbrit November 21, 2022
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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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