Porcelain Pony 

A phrase used to describe a toilet, usually used by someone who is emphasizing its prolonged usage

"After those tacos, I am going to be riding the old porcelain pony all night"

Porcelain Pony by Old man withers September 3, 2005

Pony Jar

The Pony Jar was a meme back in ye old days of tumblr that originated from a man who made posts about his “pony jar” which was a glass jar with a singular my little pony toy in the middle. And he would put his semen in the jar to cover the toy

Now it is used as a way to ruin people with internet culture’s day

“Bro I can ruin your day in 2 words”

“Bet,”
“Pony Jar”

Pony Jar by Velvet.Exe January 2, 2020

alimony pony 

To ride an alimony pony it is when lower-income ex-spouse continue meeting certain living by getting the amount paid by one ex-spouse after a divorce.

"Friends":

- How have U been?
- Well, I am divorced. I'm riding the alimony pony.

alimony pony by Molekula Apelsina March 14, 2014

Thunder Pony 

The infamous shot of alcohol whereby it is customary to yell, "THUNDER PONY" prior to drinking the shot.

Dizzle, I hope you enjoy a thunder pony for your birthday tonight!

Thunder Pony by Thunder Pony Fan October 29, 2014

Pongoes 

British slang dating from the mid-nineteenth century, meaning soldiers. It stems from a snide expression used by music hall comedians to get a cheap laugh "where the army goes the pong goes", pong meaning smell. This quickly became pongoes meaning soldiers plural and pongo meaning an individual. Still in use today although not common.

When a regiment is given the freedom of a city, the pongoes are allowed to march through it bayonets fixed and colours flying.

Pongoes by Croatalin January 27, 2014

Ponnor 

An extremely fat, name stealing cat, that has a broken meow box.
"Ponnor" is a name associated with cats that just one day come into your house, pretending to be homeless and pregnant and eventually just move in.
You later realize they are just extremely fat and they've come to steal your loved ones.

José: Dude what's your new cat's name?
Connor: Ponnor.
José: Ha.
Connor: Yeah my dad likes him better than me.

Ponnor by Connor Wade December 9, 2008

Class Pony 

Normally a girl, usually in highschool, known for giving other students sexual pleasure.

Wow that girl get's around, she is definitely the "Class Pony"

Class Pony by Major Tanksley April 8, 2006