My sister in law married my brother. She is a whore, I bet she doesn’t know who their kids fathers are because let’s face it, she’s a nasty loosy whore hoodrat tramp.
The wife of one's spouse's brother.
My co-sister-in-law is a good person.
Spouse's half-sister or half-brother's wife.
My half-sister-in-law is a good person.
1- Half-sibling's wife.
2- Spouse's half-sister.
My half-sister-in-law is a good person.