pileup 

a collision involving numerous motor vehicles

There is a nasty pileup on the highway.

pileup by The Return of Light Joker March 21, 2009

Lesbian Pileup 

Act where any number of lesbian women pile on top of each other for sexual pleasure. Typically involving four or more females but can grow to double digit numbers where the pressure on the bottom of said pileup reaching lethal levels.

Alyx: Oh man, my chest really hurts for some reason.

Mike: You should know by now Alyx that pressures can be quite large at the bottom of lesbian pileups.

Lesbian Pileup by jtsiz November 13, 2011

cincinnati pileup 

Cincinnati pile up is when three or more men take turns shitting on a chicks face.

"Sorry I'm late for work, but my face, and around three guys, were involved in a Cincinnati Pileup."

cincinnati pileup by Capnbunz February 15, 2014

chump pileup 

A bunnch of trumpsters blocking a motorway for some fucking reason.

Thousands of magamorons from New York to Texas and all the way to Colorado took part in chump pileups, shutting down roads and bridges.

chump pileup by rökken roller November 2, 2020

San Franciscan Pileup 

The act of two males masturbating with one another and ejaculating at the same exact time. The result is the ejaculated sperm colliding with one another.
This should not be confused with a "San Franciscan Kiss", which is similar, but one male ejaculates into the urethra of another man during or before the other male's orgasm.

"Man, did you see Jack & Terry's room?"
"Yeah. It looked like a pulled a San Franciscan Pileup on the place!"

San Franciscan Pileup by I'm not giving you my name D:< March 22, 2009

Cincinnati Pileup 

when a bunch of black asian homos lay on top of each other, motionless.

Dude, I was at this party last night and some gay blasians came over and had a Cincinnati Pileup. It was off the chain, yo!

Cincinnati Pileup by LewStone July 7, 2015

Texas Pileup

A type of orgy involving 20 or more drunken people usually in a Texas Holiday inn. It begins with a woman bent over the bed taking it in the anus . Then the other participants run with hardons or strapons into the asses of each consecutive person interlocking everyone ass to cock , cock to ass.

Gee everyone , it sure is cold outside . I'm glad we had our Texas pileup in our room and not the freeway .

Texas Pileup by Scatprick Blomansun February 13, 2021