When you and a friend are up in the middle of the night and decide to message each other at the same time.
by AstroScraps November 26, 2017

Strike?: THUNDER TUNNEL!!!
Spare?: THUNDER TUNNEL!!!
Eating skittles out of their ass?: RAINBOW THUNDER TUNNEL!!!
Spare?: THUNDER TUNNEL!!!
Eating skittles out of their ass?: RAINBOW THUNDER TUNNEL!!!
by Spain2020 February 12, 2020

If your friend has a girlfriend, and his girlfriend slept with his sister, and you sleep with his sister. you are now Bluetooth Tunnel Buddies with your friend
by florida stanley February 20, 2020

by Noticer69 January 16, 2024

When your double penatrate her or his ass then put your head in it through the pussy abd play peekaboo with the audinece
by Haydens words November 5, 2020

When two sexual partners are both on all fours, facing opposite directions so their butthole are eye to eye and they keep passing the same fart back and forth into each other's anus.
by ThisGuy2001 July 10, 2022

When you’re in the bathtub, Butthole to Butthole and you fart into each other’s butts creating a wind tunnel
by Princessskinwalker June 10, 2022
