shit tunnel 

the toilet, the portal to the shit caven.

gonna drop a deuce down the shit tunnel

shit tunnel by EasternEuropeanSlavLover October 9, 2023

shit tunnel 

a stoner hangout that is comprised of shit and dead chickens

"yo let's go hang out in the shit tunnel again"
"tunnel dwellers are residenteveilcore

shit tunnel by zack hernandez April 23, 2005

Venezuelan shit tunnel 

When two men are having alternate anal intercourse with a woman and one man takes the fecal residue from his penis and covers the other man's penis with it before he engages the anus.

Tammy was hoping to experience her first Venezuelan shit tunnel while on holiday in Thailand.

Venezuelan shit tunnel by Rmitz April 6, 2017