Butt Brother 

Gay buddy that meets you on occation to "fuck" and also happens to be your best friend. (man on man only)

Hey did you know that steve, joes best friend is a "Butt Brother" and they fuck on occation. (

Butt Brother by scott pitts May 13, 2005

Butt Brother 

The connection two men gain after they share a common toilet seat. Similar to Blood brothers, but hopefully, no blood is involved.

After Jason took a dump in our shared bathroom at work we became "Butt Brothers."

Butt Brother by foureyedg November 16, 2009

Butt brothers 

A butt brother is when you go to the bathroom or to your next hour and the seat is still warm.

Timmy: aww man my cheeks are warm. My butt brothers was here

Randy: damn mine too

Butt brothers by Mysnapissidxwood August 8, 2019

butt brothers 

Two black males who also happen to be butt buddies, or gay sex partners.

Bro, Kobe is definitely butt brothers with that ref.

butt brothers by BHG42 October 9, 2012

butt brotherhood 

Former union guys, who now work at a nonunion shop. They no longer belong to or support the union but still treat nonunion guys like shit. The union calls nonunion guys rats, and they call former union guys queers, fags, and cock suckers hence the name butt
brotherhood.

Why do the union, and and the rats call them the butt brotherhood? Because the are trying to screw everyone in the ass.

butt brotherhood by nonunion February 7, 2010