Participant 

Someone who participates or doesn't. We are in the Trump era, and any nonsense can be produced really. See the example below by Brian Hook.

So our right as a participant is something which exists independently of the JCPOA. There is no qualification in 2231 where “participant” is defined in a way to require participation in the JCPOA; and if the drafters wanted to make the qualification, they could have, but they did not. And so under a plain reading of 2231, any participant has the right under paragraph 11 to exercise those rights in the event of a dispute or other scenarios. And so this is not – I mean, I’ve been working on UN Security Council resolutions for years. This is the plain reading of the text.

Brian Hook, April 2020

Participant by NoSanctionsonIran April 30, 2020

participant of an involuntary personal protein spill 

someone who puked, in VERY proper terms. just like there is no such thing as toilet paper anymore, now it's bathroom tissue.

the dinner my wife cooked was so disgusting that i became the participant of an involuntary personal protein spill!

participant of an involuntary personal protein spill by rockin' randall 1973 March 18, 2010

participant button bride

n. 1. Not really good looking enough to be a trophy bride, but every bit as skanky."

It's not an honor just to be nominated. Get a new toupee and sell your '92 Miata. Thanks for playing.

participant button bride by Stephen Metrulas September 24, 2004

Participant Zero 

A Participant Zero is a no life looser who sits on his fat butt all day looking at pictures of stuff he will never get. He thinks he can actually be cool by talking to people in a rude manor. He tries to flirt with girls and gets rejected because his dick is too small. Not only is he unloved by his family, but he is unloved by the people of his own race. He makes Asians look bad and Bronies of all kinds disgrace him. People die of laughter when they see his chinky face. If you are a Participant Zero, You have no soul.

Ex: " Oh My God! Participant Zero is online! RUN FOR YOU LIVES!"
Ex: " Everyone Throw Tomatoes At the Participant Zero!"

Participant Zero by CupCake304 December 3, 2011

pirate participant

Describing anybody who imposes on an engagement without invitation or registration.

One pirate participant was disqualified from the marathon upon finishing on the account that he was too cheap to pay the registration fee for an official number.

pirate participant by redrunner777 January 20, 2007

Non-economic participant 

Anyone that exist on subsidies alone or lives off others (spouse, parents, girlfriend etc), physically healthy and refuses to work. Also; NEP or Nep for short.

That Non-economic participant has no idea what a W-2 looks like.

Non-economic participant by slavenomore7 January 28, 2019

Full willing participant 

1: someone bent over to take part in an activity, generally followed by the scary uncle.

As juice girl bent over to pick up the soap monkey boy came in with the scary uncle

Full willing participant by Frank August 30, 2004