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brotherfucker 

A girl who fucks brothers especially her friends brothers. Like a motherfucker but instead a brotherfucker. The girl will usually still be in high school or senior school and her friends brother is usually a few years into their university course.
Man. I can't believe she slept with your brother last night. What a brotherfucker.
brotherfucker by Herb Mo May 28, 2008
Words you can keep

brotherfucker 

Strictly, one who engages in a specific type of sibling incest. Usually applied to any contemptible individual or object, regardless of their or its sexual proclivities.

Often shortened to brother, brofo, or bro.

See also sisterfister.
Hey, brother, can you spare a dime?
My mobo is a brofo.
Leave off my bro, man.
brotherfucker by Lucifer B September 14, 2005

brotherfucker 

when a man gets accused of wanting a threesome with a female and her brother and then furthermore is accused of just wanting her brother
girl: so ur a huge cock tease....and u wanna fuck a guy.....
annnd you told my brother you would visit him without me
you are so fucked in the head to do this to me.

man: no i am not a brotherfucker
brotherfucker by stephensharp July 14, 2009

brotherfucker 

The nickname for the anti Semitic US rep named illhan omar who illegally married her brother.
Illhan Omar is such an anti Semitic shitstain that she picked up the nickname as the brotherfucker when it was revealed that she married her brother.
brotherfucker by bendover91 February 11, 2021

Brotherfucker

Person 1: “Are you a traveling man?”
Person 2: “Hello brother:)”
Person 1: You fell for it, brotherfucker
Brotherfucker by Zoghater69420 November 23, 2025

brother fucker 

a girl who has sex with her boyfriend's brother.
she quickly became known as the brother fucker because she had sex with her boyfriend's brother while her boyfriend was in Iraq.

Brother Fucker 

a friend who hooks up with your brother
my bestie Bailey is a brother fucker and I actually don't mind it!
More from Urban Dictionary

Back when I lived in upstate new york 

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.
Word of the Day on August 31, 2026
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
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