by blakem January 3, 2007

The sense that you are get used to the atmosphere by underground transportation especially for the subway. When you get the underground sense, you may feel confused about directions and voices and uncomfortable with the sunlight, etc.
Every time I need a little while to shake off my underground sense before I come to the right exit in the subway station in Shanghai.
by Hart Bullock November 12, 2017

Normally a subliminal with controversial Affirmations, But also can be Very Exaggerated, to the point of Harmfulness.
The UG (Underground) Subliminal community is known to be very toxic, But sometimes otherwise. Sometimes people Hide UG affirmations in a subliminal to Harm someone and they usually get Cancelled for it.
The UG (Underground) Subliminal community is known to be very toxic, But sometimes otherwise. Sometimes people Hide UG affirmations in a subliminal to Harm someone and they usually get Cancelled for it.
by st4rr3y eyes June 4, 2023

the weird tunnels under Seattle that you’ve heard existed but really don’t want to spend money on a tour to see.
by Seattle rat burger November 10, 2020

A young urban professional (yuppie) who deals in illegal or unsavory business; typically drug dealers, arms dealers, organized criminals, murderers for hire, gang members, pimps or prostitutes, thieves, etc.
Scarface was the paradigm underground yuppie climbing the corruption ladder, using the piss-ants around him as wrungs.
by Snowflake 2.0 August 5, 2012

by FFJeroni January 20, 2011

Guy 1: "What did you two do last night?"
Guy 2: "We were underground railroading until our asses overflowed!"
Guy 2: "We were underground railroading until our asses overflowed!"
by thechocolatestarfish April 28, 2014
