brother-in-law

1. The husband of one's sister.
2. The brother of one's spouse.

My brother-in-law is a good person.

by Elivaldeq November 24, 2019

Brother-In-Law Zone

When you want to date a girl, but she gives you permission to date her sister instead.

Bro Shannon totally put me in the brother-in-law zone, that's the second girl this year who's put me in the BILZ

by Bill1997 November 13, 2023

half-brother-in-law

1- Half-sibling's husband.
2- Spouse's half-brother.

half-brother-in-law.

by Simaduria July 27, 2024