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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
Urban Dictionary Merch
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
More from Urban Dictionary
A group of people, typically women, searching through someone’s digital footprint in order to find more information about that person.
Susie wasn’t sure if her new Hinge match was a creep, so she assembled Galantir and they found out he used to post slurs on gaming forums.
Galantir by Ge-sus September 22, 2026
Word of the Day on September 23, 2026

murderhobo 

In a tabletop game, a murderhobo is a player who murders NPCs indiscriminately. This is normally derogatory, referring to a player who totally ignores quests, dialog, backstory, trade, world building etc.

The term is most common with Dungeons and Dragons, but it can be applied to most RPGs where the player is allowed to kill most quest-giving NPCs and NPC traders. E.g. Elder Scrolls, Fallout, Divinity original sin.
DM: The sad little orphan girl tugs at Steve's trenchcoat to get his attention, and ask for help saving her pet dog from...
Steve: I'd like to roll a strength check against strangling the orphan.
Dave: I call dibs on the dog.
DM: You murderhobos disgust me.
murderhobo by Loup&S September 9, 2021
Word of the Day on September 22, 2026
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