To engage in the act of "going deep" into the anal cavity of another being (human or not, we don't and won't judge) for sexual reasons. Can also be inflicted on one's self (again we don't and won't judge).
I'm trying to go tunnel plundering tonight, lube one deck.
Purely focused on one thing that infuriates ones self
That chat left me with tunnel rage
When two people kiss mouth to mouth, and you insert a long anal bead chain into one persons asshole, to go out of the mouth, into the other persons mouth, and out their asshole.
Me and Victor had a really fun time doing the Arab Anal Tunnel
The act of inserting food into an oriface, and leaving it looking like frosting in one's tunnel
"It takes me a minute to mash it up, but a banana makes a great tunnel cake!"
The close-up shot done in porn focusing on the penetration of a vagina.
That movie on Skinemax had the most intense sex scenes I've seen on regular cable; it shows everything short of tunnel cam.
The sex act where a man is thrusting from the back with the womans legs closed but the penis does not penetrate. Instead it rubbs through the "thigh gap" area while the woman massages the tip. Also known as "Mormon Doggy-style"
My girlfriend isnt in to soaking but shes great at The Tunnel of Love