Refers to the someone who obviously does not live in the Washington, DC but somewhere in Maryland or Virginia.
"Did you see that guy with the blow out and the Ed Hardy trying to get into 18th street?"

"Yeah, ...so Beltway."
by Phillip Pino April 19, 2010
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a motorist who refuses to match the prevailing velocity of other motorists on a high-capacity arterial roadway, often in heavy traffic; a motorist who is driving too slow in the fast lane; a motorist who hogs the fast lane when others are passing on the right; a motorist who is impeding traffic. Often, the offending motorist lacks confidence in his/her driving abilities, fears other drivers, or has been deluded into thinking that by going slow on the freeway, s/he is making the world a safer place.
That beltway bitch is going way too slow. He is going to cause an accident!
by Driving School March 17, 2009
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Another name for Interstate 465, the beltway (ring freeway) surrounding the city of Indianapolis, Indiana. Approximately 50 miles long, it passes through four cities (Indianapolis, Lawrence, Beech Grove, and Carmel). Most of its length is in Indianapolis.

The freeway is also known for motorists' general ignorance of the speed limit (55 MPH). A majority of traffic moves at 70 MPH or faster, garnering this freeway this nickname.

I-465's north and east legs are also characterized by severe traffic jams rivaling those of much larger cities. This is exacerbated by the high number of semitrucks/tractor-trailers that traverse the freeway at all hours of the day.
I love fooling out-of-towners into thinking that the Indy 500 consists of 10 laps around the Indianapolis Motor Beltway.
by Alan Kirschner June 16, 2007
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A beneficiary of white male privilege who works in the DC area, especially males involved in foreign policy who have little or no relevant international experience.
Generally, beltway bros make up for what they lack in competence with an abundance of unjustified self-confidence.

The swamp consists of beltway bros who purport to be experts, e.g. in the Middle East, but don't speak any relevant languages and have never lived or worked in the region.
by Alilbirdtoldme June 28, 2021
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The act of driving and masterbating at the same time.
I was driving in my truck and I looked over and could see this dude beltway wailing while he was driving.
by Mr. T in MD September 28, 2020
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Schools located inside or near the Washington Beltway. Usually refers to schools in Arlington, Eastern Fairfax County and Alexandria. These schools are known to a menace to society full of druggies, meth heads, hoes and gangs.
“Aye bro I’m gonna take this cute shawty from Annandale out to dinner tonight”

“Sorry to tell you bro but that girl goes to a Beltway school, she’s only using you for free stuff. She probably already has 10 bodies by now
by MadisonDiCaprio April 11, 2022
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