The Metropolitan Transportation Authority (MTA) operates the subways and buses in New York City. The Scissor Sisters are a New York-based band, and the lyrics in its song “Let’s Have a Kiki” (2012) suggest the overcrowding and the sexual harassment on the MTA’s subways:
 
“And take the train to the club
And we all know
That the MTA should stand for Motherfuckers Touching my Ass.”
 
This lyric has been frequently cited on Twitter.
 
The MTA has also been nicknamed “More Trouble Ahead” (cited in print since at least 1995),  “Money Thrown Away” (cited in print since at least 1996), “Might Take Awhile” (cited in print since at least 2007), “May Take Awhile” (cited in print since at least 2008), “Many Trains Absent” (entered in the Urban Dictionary in 2008), “Money Taking Agency” (cited in print since at least 2009) and “More Than Awful” (January 31, 2019 New York Daily News front page).
   
       
Wikipedia: Scissor Sisters
Scissor Sisters is an American pop/rock band formed in 2001. Forged in the “gay nightlife scene of New York,” the band took its name from the female same-sex sexual activity tribadism. Its members include Jake Shears and Ana Matronic as vocalists, Babydaddy as multi-instrumentalist, Del Marquis as lead guitar/bassist, and Randy Real (who replaced Paddy Boom) as drummer.
 
Wikipedia: Let’s Have a Kiki
“Let’s Have a Kiki” is a song by United States band Scissor Sisters. The song was released as the third and final single from their fourth studio album Magic Hour. It was released on September 11, 2012 in the United States and September 18, 2012 in the United Kingdom. The song was written by Jason Sellards, Scott Hoffman, Ana Lynch and produced by Scissor Sisters.
(...)
Background
A “kiki” is a meeting of friends for the purpose of gossiping and chit-chat, used mainly in gay culture.
 
Genius.com (song lyrics)
Let’s Have A Kiki
Scissor Sisters
Produced by Scissor Sisters
Album Magic Hour
(...)
And take the train to the club
And we all know
That the MTA should stand for Motherfuckers Touching my Ass
     
Twitter
Robyn 🌻
@lesbey0nce
And you know that MTA should stand for motherfuckers touching my ass.
7:11 AM - 6 May 2012
   
Twitter
Miguel
@michaelhird
“And you know that MTA should stand for ‘Mother Fuckers Touching my ASS’” #letshaveakiki
12:44 PM - 6 May 2012
   
Twitter
Ana Matronic
@MsAnaMatronic
My pleasureX@BernardLansb: ‘You know the MTA should stand for motherfuckers touching my ass’, might be my favorite lyric of 2012. Thank you.
12:51 PM - 6 May 2012
 
YouTube
Scissor Sisters - Let’s Have A Kiki - Instructional Video
scissorsisterstv
Published on Jul 27, 2012
Filmed at the Kiki Institute of Mental Instability
 
Twitter
LIL’ MORTIE
@morticianita
And you know MTA stands for Mothafuckas Touching my AssLIL’
2:20
Brian Latimer
@briskwalk
The MTA announcing which trains are delayed. 
12:09 PM - 3 Dec 2018