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The united states passenger railroad in 47 out of 50 states.

Provides long and short distance travel for passengers.
I am going on Amtraks Coast Starlight next month.
by Anton February 19, 2005
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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A low security transportation meathod in the United States which neglects serving several states.(Yes they pretend that Alaska, Haiwii, South Dakota and Wyoming do no exist). Amtrak opperated trains ranging in age about fourty years. This system is a bit slow for trains but extremly pleasn't to travel upon.
I took Amtrak from LA to New York, it only took six months (of course it was a month late, it is Amtrak).
Amtrak is the sex. We had a blast going to a two states over.
by Godly One July 07, 2005
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Basketball: A traveling violation

Travel: The government-owned corporation that operates the Acela from Boston to DC.
Basketball: The ballhandler raised his pivot foot, and put it back down without passing or shooting - the ref has to call Amtrak on that!

Travel: He's taking the Amtrak Acela Express from New Haven to Penn Station instead of Metro-North to save time.
by CP12 April 01, 2006
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Amtrak is the sole intercity rail provider in the United States. It has many trains that carry passengers to over 500 different cities and towns across the country. Sadly it is usually very late and can sometimes be inconvenient. Amtrak was founded on May 1st 1971. Their main route is the Northeast Corridor from Boston to Washington D.C. going through New York City and Philadelphia. The Northeast Corridor and the Keystone Corridor from Philadelphia to Harrisburg are the only two electrified routes in all of Amtrak’s system. Here is a list of the locomotives they are used by Amtrak currently and their road numbers:
Siemens ACS-64 (600-670)
GE-{P42DC (1-207, 700-717, 800-843)
Siemens SC-44 (2101–2122, 1400–1401, 1403–1407, 4601–4633)
GE-Dash 8-32BWH (2051-2052)
EMD-F59PH (1810, 1859, 1869, 1871, 1893, 1984)
EMD-F59PHI (1755, 1797, 2001–2015)
Amtrak is loved by many railfans across America.
via giphy
by amtrakrailfan642 July 02, 2020
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A sexual practice whereby a group of male friends (or "homies") queue up and take turns fucking girls. This adds a systematic element to group sex, much like the Miller rotation system does in volleyball.
From 2 Live Crew's "We Want Some Pussy":

"You see, me and my homies like to play this game
We call it Amtrak but some call it the train
We all would line up in a single-file line
And take our turns at waxing girls' behinds
But every time it came to me, I was shit out of luck
Because I'd stick my dick in, and it would get stuck
The girls would say "Stop!" I'd say "I'm not!
That's enough, I quit, 'cause y'all are bustin' me out!"
I say, girls, don't hide it, just divide it
And please don't knock it until you've tried it
So to all of you bitches and all you hoes
Let's have group sex and do the Rambo!"
by sc0ner June 12, 2010
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