Inserting a live animal through a tube into someone's anus. Rodents are mainly used. SEE "feltching"
Dave was really into tunneling, he had a favourite gerbil he liked to use.
by Jasvk May 5, 2003
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The act of aggressively rubbing ones penis one a spoke (i.e. chair leg, tether ball pole) in an attempt to create or "tunnel" a vagina
Dude, all my golf grips are torn up because Jimmy won't stop tunneling
by DanJoeBobFriend November 8, 2017
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The Tunnel is how Coloradoans refer to the Eisenhower Tunnel, the highest vehicular tunnel in the world. It carries I-70 through the Continental Divide and through to the killer powder on the other side.

Usually used when talking about how long it's going to be until you shred the gnar.
"How long til we get to Vail, man? I can't wait to rip with my new board."

"At least an hour, we're not even to The Tunnel yet. Better light that blunt now."
by frank carter June 29, 2009
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A term used during gay sex when the man being penetrated excretes feces and the man initiating the penetration continues anyways.
"Yes Derrick keep tunneling me."

"Fuck he tunneled me so bad last night I can't even move."
by Jopsenig April 5, 2016
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1. To become embaressed after doing something stupid or making a mistake.
2. A feeling right before doing something uncomfortable
He was in the "tunnel" when he had to meet his girlfriend's parents for the first time.

I was in the tunnel when I fell down in front of a huge crowd.
by Davea131 April 24, 2008
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When two closeted homosexual males with beards (wives) live next door to each other and build an underground love tunnel between their houses.
"Hey Poodsy bear, can you sneak away from your beard for an hour of chubby, hairy lust?"

"Absofuckinglutely my furry little pocket rocket, I love tunneling! "
by BRASSDOGCHAMP September 15, 2019
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when one man places his foreskin over another mans penis, hence becoming a tunnel.
Sid and Frank, were tunneling one night together
by steph_2207@hotmail.com May 13, 2007
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