run a train

run a train (third-person singular simple present runs a train, present participle running a train, simple past ran a train, past participle run a train)

1. Used other than figuratively or idiomatically: see run,‎ train.
2. (intransitive, slang, vulgar) Synonym of gangbang: To have sex with someone as a line going one after the other.
   • 2008, Jody Miller, Getting Played:

     And we went upstairs and we ran a train on her.

   • 2009, Mike Flax, L.A. Unified:

     “Hey mister, why don't you leave so we can run a train on Andrea?”
     “Oh my god,” Andrea said. “Erik, you motherfucker! They should run it on your mom!”

   • 2011, A. Vyctoria Abrams, Ava's Diary: From the Very Beginning, page 64:

     He even drove them to a couple of house parties, whereby his partners, along with other boys in the hood, impatiently waited their turn to run a train on consenting young teen-aged girls.

   • 2018, Laura J. Lederer, Modern Slavery: A Documentary and Reference Guide, page 288:

     Sometimes, to punish victims, the gang would “run a train” on a victim, which meant that multiple gang members would have sex with the victim in rapid succession.

3. (intransitive, slang, vulgar) To have sex with someone multiple times in short succession.

The object of the train may be specified using the preposition on.

• pull a train, tip drill