A sexual act by two partners in which they both spread their ass cheeks and put there asshole together to exchange feces. This is usually followed by the two partners playing with the extra feces.
by Lincoln Tunnel May 11, 2014
What becomes of an underclassmen when an upperclassmen takes an act or statement of an underclassmen and makes them severely regret it. In essence, the underclassmen was raped by the upperclassmen and has to walk around sporting their new butt tunnel until the swelling goes down.
If an underclassmen challenges an upperclassmen to anything and then looses his ass becomes a butt tunnel due to the rape he just endured.
by Stagger14 April 07, 2011
Like billy is my tunnel buddie
by Christmas eve February 11, 2014
Get the carpet tunnel mug.
by IRyde March 26, 2009
by Asstowrist February 08, 2018