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(Noun, Acronym)

Stands for Precision Scheduled Railroading. CSX Rail Road Cooperation implented this into their service and it took it's main toll in-between the years of 2019-2020. This was supposedly a plan which would save money on departing daily trains from places on CSX tracks. Since then trains have been abolished, ID codes have changed, routes have been transfered, and also, trains have been combined. That is why you can now see upwards of a 15000ft. Long Monster train on CSX trackage. It also cut down the usage of foreign power which is one railroads engines operating on another railroads tracks. I had not seen BNSF in Folkston, GA for over 2 years because of this. CSX has since dropped PSR as of mid 2021 but it still lives on In all of the other USA Class One Railroads and possibly even Canada's class ones as well. If you want a real look at a RR that was hit hard, go Railfan Norfolk Southern (NS). NS had just finished triple tracking (3 tracks) their Mainline to Chicago (Chicago Line) and it was needed for the lines 90-100+ trains a day. Now the lines probably only serves 60-70 on a daily basis. CSX also sold off one of their lines in Florida which cause a half of all Folkston traffic to take another route. That line had 60-70+ a day and now the highest recorded number is 23.
"Dude, did you see that 18000ft. Plus Union Pacific Train yesterday?"

"Yeah, it was probably created by PSR."
PSR by Gbull_ADV July 31, 2022
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PSR B1257+12 A 

A planet in our Milky Way, found in 1922.
Scientists discovered PSR B1257+12 A in 1922. A remain of a long-gone massive Supernova.
PSR B1257+12 A by Brucien January 23, 2020
Related Words
PSR PSR B1257+12 A psrgc PSRI PSRing psromn Psrt PSRV oacp psr
OACP PSR (pronounced Oak Pisser) is an acronym for `Old Ass Crusty Punk Pop Synth Rock`, and generically refers to any music fitting into the generic definition schema.
"Dude I'm rocking the 'Pop Will Eat Itself'!"

"Yea man PWEI are Oacp psr supreme!"
oacp psr by anothertool April 30, 2008
A state of belief that an individual(s) should treat you with more care and respect.
“I’ve been doing this job too long, the new guy needs to PSROMN”
psromn by 2BM August 15, 2018
"Ohhhhhhh baby. I"m excited. There's gonna be mad PSRV's at my little bro's grad party tonight." -Neil
Punz' Shadow Raiders Group Chat

Group of cool people who met through a game called 'Raid Shadow Legends' because their favorite streamer, Punz, asked them to play it.
PSRGC are all simps.
psrgc by pachuchi July 4, 2021
Adjective
Someone who is so stupid that they have come full circle and become smart.
"That person is such a psrt."
Psrt by Oreanth November 26, 2021