Tunneling 

When you beer bong an entire beer through your anus.

"I'm so drunk, I was tunneling an entire beer earlier"

Tunneling by beeraddict76 December 15, 2013

tunneling 

getting some between a voluptuous pair of knockers.
safe sex by avoiding orifices and the exchange of body fluids.

Jimmy chose to avoid disease by tunneling his rod between Sally's massive breasts.

tunneling by MysticalKrystal April 26, 2004

Tunneling 

A behavioral pattern found in markets where the price of product stays in-between a given ranger for an extended period of time. When graphed one can see price bouncing between two almost physical barriers, causing the trend to go sideways. This behavior has claimed the lives of many traders' accounts and has caused thousands of people to go on tilt. Do not fall the trap of tunneling.

Person 1 - How was trading JPY today?
Person 2 - I might as well have rolled a Rari.
Person 1- oh?

Person 2 - Fuckin' tunneling
Person 1 - Fuckin' tunneling

Tunneling by Ranch_Meee_Investigate_311 September 9, 2021

Tunneling 

When a joint is burning/lit unevenly

Damn, the joint is tunneling

Tunneling by averagestoner May 7, 2023

tunneling weed 

A top of shotgunning
two people make a tight tunnel out of their hands and the gunner blows while the receiver sucks.

They're scared to touch lips,they're gonna be tunneling weed

tunneling weed by HARDCORESMOKER. December 8, 2011

Brownie Tunneling 

The act of using human feces for lubrication for vaginal sex.

Bob: So, did you get some ass last night?
Tom: Oh God yeah, the chick even let me brownie tunnel her!
Bob: Holy shit! Nice dude!

Sam: So do ya think we have time for some brownie tunneling?
prostitute: well.. If you insist. Make sure you pull out though..

Brownie Tunneling by Noah Hizzle May 6, 2008

bus tunneling 

a great game in which all of the people on a school bus put their backpacks in the center aisle to hide the floor (the surveilance camera can now not see the floor completely), and a person tries to get from one end of the bus to the other underneath the seats (or really any distance).
this activity can get you slammed with fines, juvy, or at least bus expulsion; only to be played under the lack of supervision of a substitute bus driver.only play when people who you know are above you, because people you do not know may try to kick you(it would suck nad you might get stuck)
i have personally played it and it's awesome.

guy1: hey, JC just went bus tunneling and got kicked by Ben!
guy2: what a dick, we gotta kill 'im!
Ben: it wasn't me, man, that dude did it!!
JC: let's get that dude!!!

bus tunneling by Irving Scott September 24, 2005