Pile On - "sexual definition" - to have more than 2 people join together on a bed, rug, or elsewhere for the purpose of engaging in group sex or group sexual intercourse.

Usually associated with group sex, swinging, swingers, the lifestyle and other free-thinkers.
Linda and Jim were fucking naked on the bed. Debbie got undressed and joined them. Then John walked in, got naked and asked if he could pile on. They all shagged and reshagged for hours. The swingers piled on each other all night.
by Juke Boxx Hero October 23, 2011
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Someone that that sits around on the couch and smokes a shit load of weed.
That guy is such a pile, he hasnt come out if his house for 3 days.
by randalf von richtoven January 6, 2008
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Doing nothing, typically while hungover the day after over-imbibing. Essentially being a pile of shit on a couch.
Donna’s not coming to brunch, she’s piling.”
by aintnolaws September 8, 2019
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Usually found in a hardcore show, a pile-on is when everyone rushes from the pit to the front of the stage and jumps on the shoulders of the person in front of them. This is done mostly during a sing-along where the vocalist gives up the mic to the crowd, much like a gang vocal.
Dude that pile-on during Mutiny was fucking croosh!
by Matt aka the quite storm June 7, 2007
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A 3 dimensional measurement used to calculate distance ,time, circumference, pi, weight, velocity, density, temperature, acts of god, force, gravity, WPM, resolution, direction, time, and worth.
"7.45 cubic kilopiles should get me to my destination".
by vectortec October 18, 2003
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An uncomfortable ailment for anyone who has accessed this word. Result of sitting on cold concrete, child-birth or anal perversions.
I took a dump and my piles fell out. It looks like an open bullet-wound.
by jadio u no August 15, 2003
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A pile of mundane but indispensable items that often builds up in a certain spot of a room/apartment/etc, such as the tchotchkes piling up on a desk/dresser, a pile of laundry (both dirty and clean), or a pile of boxes that exist when moving between 2 or more places in a short period of time. It is worth noting that these piles, although manageable, are often really hard to remove completely, especially as they are quick to build up again, quite commonly in different places.

a variation of this term is the "college pile" which is essentially a pile of boxes, luggage, etc that piles up at a person's home before or after moving between college dorms/apts
hey found this random book light on your desk?
throw it on the pile!

hey there's a box of books here?
the college pile!
by UM North Quad August 19, 2011
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