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
When having a dump, collect it up into a bag and put it into your sex parteners mouth whilst she is asleep.
Iles: You dude, We got it on last night, how about you?

Matthews: I found out that she was cheating on me so i gave her a piling.
by Tomzabest123 February 19, 2009
When everyone jumps on top of one unfortunate soul, they 'pile on'.
The much less wimpy sounding version of bundle.
'Look, Chris is asleep. Pile on!'
by Kurt H October 18, 2005
When you have to take an emergency poop, but all the toilets are already clogged and you go anyway.
I stopped at a rest stop on the interstate and the toilets were full of poo, so I got stuck piling it on.
by Jake2z June 5, 2011
anything that is a piece of shit, somthing that crappy,old or broken..
Dude your car is a pile. (meaning your car is a piece of shit)Can even mean a person who is lazy or just a waste of life)
by jon February 20, 2005
. Sitting on a radiator or dildo for long periods of time, causes this itchy medical complaint. "I would purchase one of the many effective pile creams, for soothing relief. But i'm quite thrilled by the burning sensation similar to that of a hot fish finger shoved up my arse" chuckled Julien
by James November 11, 2003
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