look up any word, like sex:
 
7.
Double team that includes two people who are both named Alex. Known for its excellent sexual stimulation
Us Alex's gave that biatch the A-Train
by someguy April 02, 2005
 
1.
A person who has the aids virus
yo, did you see that guy, looks like he's on the A train
by jack the wack May 07, 2008
 
2.
The feeling of being able to accomplish anything while on adderall; often associated with a ten fold increase in productivity.
A: Hey man are you okay? What'd you do all day, didn't hear from you at all.

B: Yeah, I'm fine, just took a ride on the A train. Cleaned my room top to bottom, alphabetized my DVD's, and got all of my laundry done. AND finished that paper I put off for 2 weeks.
by ringtab November 05, 2010
 
3.
To be dominant. Sexy, confident, full of swag.
"Give me the ball, I'm about to go A-Train"
by kevinache October 13, 2011
 
4.
A New York City subway train (the Eighth Avenue Express) mentioned in Duke Ellington's signature song "Take the A Train" and famously performed by Ella Fitzgerald. The A Train passes through Harlem, stopping at 145th Street ("Sugar Hill"), a center of African American culture during the "Harlem Renaissance" between the world wars.
You must take the A Train / To go to Sugar Hill way up in Harlem / If you miss the A Train / You'll find you've missed the quickest way to Harlem ...

"Take the A Train"
Billy Strayhorn
by JerseyJohn February 01, 2007
 
5.
On some college campuses taking Adderall is known as "taking the A train"

Adderall is used to help students concentrate and reduces their appetite
It's finals, everyone is riding the A-train right now
by Race04 December 06, 2010
 
6.
Tripping on acid (LSD).
He's riding the A-Train and won't be back for a couple of hours
by John Thomas October 24, 2003