Underground Railroad

The sexual act of going down on a girl and vaping into her vagina
My boyfriend cannot stop vaping! Last night he vaped in my pussy and called it and Underground Railroad. It kinda tickled though.
by Chu Chu Twain December 17, 2015
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Underground Railroad

The act of two males having intercourse with a single female a.k.a. "running a train" while under the bedsheets. An underground railroad is exclusively when this act is done by African Americans.
"Yo, I heard you and your bro ran an Underground Railroad on Shanockquolisha last night!!"

"Hell yeah! That sh*t was insane!!"
by TheOneAndOnlyHalfnHalf October 03, 2011
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To "ride" your girl/boyfriend like a freight hopper would
Yeah I "Joy Rided The Railroad Manafest" with Sarah last night.
by AR15 2005 April 21, 2021
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Pennsylvania railroad

The Pennsylvania Railroad (PRR) aka the “Pennsy” was A titan of American railroading history. It was once the largest and most influential railroad in the United States. Renowned for its engineering prowess and iconic locomotives, such as the sleek Art-Deco GG1 electric locomotives and the mighty K4 steam locomotives, the PRR was a symbol of industrial power and innovation. However, the railroad’s dominance faltered in 1968 when it merged with its longtime rival, the New York Central, to form the Penn Central Transportation Company (Penn Central). Despite their combined size, the merger was a logistical and financial catastrophe, as the two networks were poorly integrated and fraught with inefficiencies. Within two years, Penn Central filed for
bankruptcy, marking one of the largest corporate failures in U.S. history.

In 1976, the railroad’s remaining assets, along with those of other struggling northeastern railroads, were handed over to the newly established Consolidated Rail Corporation (Conrail). Conrail operated successfully until its eventual division in 1999 between Norfolk Southern and CSX Transportation, with Norfolk Southern inheriting much of the former PRR system. Amtrak acquire control of PRR’s electrified Main Line east of Harrisburg, preserving a critical piece of its legacy.
Amelia: “Man, the Pennsylvania Railroad was a beast back in the day. They had the GG1, the K4s, and some of the best infrastructure in the country.”

Malik: “Yeah, but then they merged with New York Central and it all went downhill. Penn Central was a trainwreck—literally.”

Amelia: “True, but you gotta respect the PRR for building the backbone of modern railroading. Their legacy still lives on with Amtrak, CSX, Some Commuter trains and Norfolk Southern.”
by EMD F59PHI January 11, 2025
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undergroin railroad

When someone is pooping and you pee between their legs
She was peeing and I had to go so I went with the undergroin railroad
by jjtwatt January 22, 2015
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double railroad

Double penetration, with one guy wearing a conductors hat, and all parties involved make choo-choo noises.
I couldn't get any sleep last night because Victoria was getting double railroaded next door.
by Jeffsodef December 30, 2015
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The part of the subway that runs above ground.
The black people were in plain sight of the racists while on the elevated underground railroad portion of the underground railroad.
by Solid Mantis November 26, 2020
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