Red Line "L" Train

The Red Line is an elevated train that provides 24-hour train service between Howard on the North Side and 95th/Dan Ryan on the South Side via downtown Chicago. Do not take this train day/night to or from the south side of Chicago if you are white unless you want to get beat up, jumped or raped.
New girl living on south side: "hey let's take the Red Line "L" Train up to the city"

Friend who's been living there: "yeah girl, we can take the Red Line "L" Train if you want to get raped, beat up, stabbed and have your phone and money stolen"
by chiveteran April 22, 2013
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Having sex with a girl while she is on her period.
After the Capitals beat the Penguins, he continued to Rock the Red by taking the Red Line to Shady Grove
by wolfmnsbro May 05, 2009
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Red squiggle line

When the computer knows your about to fail; even when YOU don't.
Mat: Oh man, I got a C on my final paper! I thought it was perfect.

John: Did you use spell check?

Mat: You mean that annoying red squiggle line under all my words? No I turned it off.

John: Why am I your friend again?
by Lucky7ven May 09, 2011
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CTA Red Line

A route that is well known for stabbings and robberies and such unpleasant crime.
John: "I got robbed on my way home on the school bus!"
Mary: "Maybe the school bus rode the CTA Red Line."
by thattransitguy June 13, 2021
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Red-line Editing

When one could care less about proof-reading something they have typed on the computer before submitting it and onlyscroll through to make sure no words are underlined in red.
Ex 1: I received a horrible grade on my midterm essay because I finished it so late at night, that I only had time to do some quick Red-Line editing

Ex 2: My teacher thinks I'm pretty stupid because I used "their" instead of "there", an unfortunate result from my habit of Red-Line editing.
by 18zgirl23 January 14, 2010
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DC Red Line Steamer

Similar to The Cleveland Steamer, except you defacate bloody fecal matter onto your lover's chest and rock back and forth in it as fast at possible, impersonating the speed of a DC Metro train.
Daniel (looking in the mirror at red marks on his chest): Where did these red dots come from? (He thinks briefly then remembers). Oh. DUH! My ex gave me a DC Red Line Steamer.
by Big shot 91 June 13, 2021
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Red line

Some people & certain personality traits are just a red line. ( my privacy, my loved one, my routine, my life)
Red line if you cross it more than once I’ll get disgusted!
by TheBlueLeo April 19, 2019
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