Marshall Brothers 

Guys with the most insane ability to get any girl they want. Also guys who will turn into the biggest assholes you've ever met if you fuck with them. Be careful with them around women you like as they'll probably get them first.

What happened" "I pissed off the Marshall brothers so they banged my girlfriend and my sister and sent me pics" "Damn!"

Marshall Brothers by Anonymous63401 January 21, 2011

Bull Brothers 

Brothers defined in bullshit alone

Tyler and John are bull brothers

Bull Brothers by leadershipinaction April 17, 2011

Mongolian brothers

when two friends know that they have slept with the same chick and refuse to admit it to eachother because she was really ugly, a total skank or lame in bed

i was having a drink at the bar with my best friend when a horribly familiar voice behind us shouted "hello boys!". One look at my friends face and I knew we were Mongolian brothers.

Mongolian brothers by blackstever December 19, 2012

pie brothers 

The other men that had sex with the women you had sex with.

Oh my God! You fucked Cindy too? That makes us pie brothers! Jennifer Aniston made Brad Pitt and Vince Vaughn pie brothers

pie brothers by jer@nite September 13, 2013

Deskimo brothers

When two males engage in sexual intercourse with the same female, on the same desk, at two different points in time.

Keith and I are already eskimo brothers, but I just found out we're deskimo brothers also!

Deskimo brothers by goballsdeep212 February 3, 2014

sled brothers

When you and another guy have both had your dick sucked by the same girl

1-"Dude I got some good ass dome last night"

2- "Good shit dude, who was it?"

1- " that Megan girl, she knows what she's doing!"

2- "Bro! She's blown me too! It was fucking amazing, can't believe we are Sled Brothers!!"

sled brothers by Charlie848842 April 23, 2014

whore brothers

Male friends that has had sex with the same woman (at different times) so they are in her Sexual history as "whore brothers"

You had sex with Holly too? Hey, we're whore brothers!

whore brothers by MrJDL71 May 12, 2014