Tunnel Brothers

Tunnel brothers are 2 men who have had a common female sex partner in their past.

Gerald is currently digging out Muriel, who used to give it up to Asa. Gerald and Asa are now tunnel brothers.

by Straylight990 February 10, 2010

tunnel brother

A guy who has banged the same girl you have

Oh, you banged Sally? You know that you and Kyle are tunnel brothers now, right?

by caveman pleasures September 03, 2013

Tunnel brothers

Max fucks Ethan in the ass while Ethan is fucking Katherine. At a later time Katherine fucked Josh. Now Max and Josh are tunnel buddies cause they are both connected by Katherine's Vag.

yo dawg, we tunnel brothers. We both sorta hit that

by MattNola504 March 12, 2017