Our brother in law (Gisenu) 

this expression comes from Hebrew. it is originated in the TV show Traffic Light (Ramzor), and has a similar meaning to "my man". If you meet someone you like, you would go: "What's up, our brother in law?" (Ma kore gisenu?)

Q: "What's up, our brother in law (Gisenu)?"
A: "it's all Sababa!"

Our brother in law (Gisenu) by Hefer Guri December 7, 2009

Dog Track Brother-In-Law 

A person who considers it their role to show children how the world really operates.

On the rare occasion that the children are left in the care of a Dog Track Brother-In-Law, he must be reminded that the kids can absolutely not smoke.

Dog Track Brother-In-Law by Robert Lanham, Author of Food Court Druids, Cherohonkees, and Other Creatures Unique to the Republic August 4, 2004

National Gay Brother Day 

April 25th, The day of the year where you celebrate your gay brother(s) and brother-in-law(s)

Mom: are you going to wish your brother a happy National Gay Brother day? It was difficult for him to come out so we should celebrate for him.

Me: Yes I will wish him a happy National Gay Brother Day

National Gay Brother Day by Queers-R-Us April 24, 2022

[Hook] a [brother] up

A request of information/access to something (often illegal) from one homeboy to another.

Homeboy A - "Yo nigga, I got me a fly new hat stand"

Homeboy B - "Yo yo yo my man, Hook a brother up"

[Hook] a [brother] up by LaShaun Jackson1 January 27, 2009

My Brother Is Gay 

The moment when you question your brother's gay nude magazines, constant man friends that sleep over, and his feminine choice in movies and other interests and realize that your own brother is a flaming homosexual. May occur early or extremely delayed from the point your brother starts to become a homosexual. Is usually a moment of epiphany.

FordWhitticar : "Max has an awfully large collection of gay porn and feminine movies......Oh god My brother is gay.."

My Brother Is Gay by frankthetankman October 3, 2011

Eskimo brother 

The definition for when 2 guys have had intercourse the same girl.

Derived from a show called "The League". This was introduced by actor/comedian Jon Lajoie

"Dude, I had sex with Cindy last night!"
"Oh yeah... that's cool. I fucked her 2 weeks ago. That means we're Eskimo Brothers"
"What? We've been going out for months..."
OR
"Hey bartender, let me get a free drink. We're eskimo brothers!"

Eskimo brother by CeMsTa_1019 April 9, 2010

Sword brother 

"Olden times (greek/uncle?) when men would go into battle and would be like: We're sword brothers!!! So they would just fuck and bond cause they're sword brothers."

I'm cool with sword brothers.
--Ron Stoppable aka Jiggity James

Sword brother by TotallyTay727 October 18, 2016