Apparently it's what System of a Down likes on their pizza.
From SOAD's "Chic 'n' Stu"

What a splendid pie,
Pizza-pizza pie,
Every minute, every second,
Buy, buy, buy, buy, buy,
What a splendid pie,
Pizza-pizza pie,
Every minute, every second,
Buy, buy, buy, buy, buy,

pepperoni and green peppers, mushrooms, olives, chives
pepperoni and green peppers, mushrooms, olives, chives
by viva riolu May 06, 2011
Get the merch
Get the pepperoni and green peppers, mushrooms, olives, chives neck gaiter and mug.
Riperoni Pepperoni 10x is used to describe someone or something that has died from eating too much meat.
OH MY GOSH! MY COUSIN HAS DIED FROM STUFFING THAT FUCKING MEAT IN HIS MOUTH!!! HE'S A RIPERONI PEPPERONI 10x!
by dipshitdickhead69 November 09, 2018
Get the mug
Get a Riperoni Pepperoni 10x mug for your mate Günter.
Roni Pepperoni is a term for the novel coronavirus. A Hungarian accent should be used ever so slightly to achieve proper pronunciation.
Hey Adam what’s with the oxygen tank?
“I’ve got the Roni Pepperoni!”
by Sphinctorious February 03, 2021
Get the merch
Get the Roni pepperoni neck gaiter and mug.
Pepperoni is used as a undercover word for beating the meat / to fap (solo).

There is also hot pepperoni which means sex.
Pepperoni juice is used as a other word for Sperm / Cum / ejaculation.
Last night I ate a really hot pepperoni and the pepperoni juice just squirted all over her face on my last bite. (I had really good sex last night with a hot girl and came all over her face)
by Deadjuice August 11, 2018
Get the mug
Get a Pepperoni mug for your buddy Trump.
A pizza topping that wants you to stop calling it sexy.
Person 1: I'm eating a pepperoni pizza!
Person 2: What a sexy pizza!
Person 1: ITS NOT SEXYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
by tiky May 20, 2021
Get the merch
Get the Pepperoni neck gaiter and mug.
When someone's rear end stinks like pepperoni.
"This is the worst case of pepperoni ass I've seen in three decades as a doctor."
by Doctor Pepperoni August 03, 2016
Get the mug
Get a Pepperoni Ass mug for your boyfriend José.