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acronym standing for "in real time"

when added to a sentence or exchange of information, "irt"gives the context that the data just exchanged is the most recent, i.e., relevant.

real time: live, current, present, as-it-happens, as-of-now
YOU: aren't you getting my texts?
ME: no sorry- my phone number is 555-2334 irt. text me there.
YOU: why?
ME: bc i never paid my bill so i'm using a text-to-talk app.

it's 7:52 a.m. irt but by the time you read this it could be evening.
irt by idtst August 13, 2016
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In Reply To or In Response To
Blaze: Can anybody help me??
Luke: IRT Blaze Yes I can.
IRT by Diamond January 10, 2004
Related Words
Interborough Rapid Transit Company, aka the subway train.
In NYC, if you catch the IRT Lexington Avenue Line, you'll end up in a ratchet neighborhood.
IRT by N3vvRmiNd May 1, 2014
(Also: Irt or irt)

1. An initialism for "In Reply To" to ensure that readers know to whom you are addressing in the Comments section of an online article since some web pages fail to insert this information automatically.

2. A useful abbreviation inserted as the leading entry of a/your comment followed by one, blank, character space and the name/moniker of a previous commenter to whom you are replying. Examples: IRT Bob Jones, Irt BillyBob, irt sillywilly.

3. A better alternative to the aggressive-sounding @ (at symbol) currently used by many in comment-threads.
IRT NocturnalNancy, I, too, prefer working at night as opposed to day.

Irt John W,
Will you, at least, agree that we must act on reducing carbon emissions now, as opposed to later?
IRT by Dave1950 September 8, 2022
The sound one makes at the frustration of having performed a typo.
Bob (typing) : Hey man, what are you doinfgh tonight?

Bob (speaking) : IRT
irt by Ironmanning July 7, 2010
A good tiktoker who inspired me to make content on gorilla tag and a very good player
IRT.VR by ILOVECURSESHIT May 4, 2022

IRT Railway 

IRT Railway is a complex North American train knowledge publisher. It's network is structured in Cloud Hosting focusing on railroad transportation.
Articles from the IRT Railway are primarily about the Train Sim World video game series.
IRT Railway by Urban Index June 20, 2024
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Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
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