Pyrite 

A brass-colored mineral, FeS2, occurring widely, used as an iron ore and used in producing sulfur dioxide for sulfuric acid. Also known as fool's gold because it looked like gold and people used to think it was.

When the miners struck the jackpot of pyrite they thought it was gold, they tried to sell it for big bucks and then it was tested after bought from them, and then the miners were shot by the buyers.

Pyrite by OliverS May 16, 2005

PYRITE 

Pyrite/ Pyrite Gender: A gender presentation that looks like a man or a woman, but they don't identify that way. Like fool's gold.

"I'm trans but I don't try to pass, I'm just a Pyrite Girl."

"They're genderfluid; some days they are a trans woman and some days they are a pyrite man, or somewhere in between."

"I went on a date with a pyrite girl, bestill my bisexual heart. He's GORGEOUS."

PYRITE by She-Diggity / Sunshine October 24, 2023

Pyrite 

A toaster with an atificial intelligence

I make toast with pyrite

Pyrite by Unabledoom July 22, 2025

Pyrite Pete 

the name given to a troll that shills for bitcoin in internet discussions, and whose behavior toward others is always toxic when those discussions might have any hint of negativity about bitcoin; usually posts under a pseudonym or anonymously; most often found in discussion forums such as Slashdot and Reddit, and/or article comment sections. They'll often write in support of/upvote their own replies using sockpuppet accounts. They are also sometimes referred to as a Bitcoin Cultist or Bitcoin Maximalist.

Gets their name for two reasons:

1. they often compare all forms of currency other than bitcoin as being as worthless as the mineral pyrite in their arguments when shilling for bitcoin
2. they themselves are chasing the "fool's gold" (bitcoin) in religious/cultist ways

Some believe that no self-respecting bitcoin owner would waste their time to make their arguments to people whom they consider "a lost cause" themselves, and since most of these troll posters keep replying in discussions with the same tired arguments concocted in their echo chambers ad infinitum (i.e. to always get the last word), it is thought that these posters are simply poor people getting paid by said bitcoiners per post, likely in Dogecoin.

We were having a discussion about Ethereum, so naturally a Pyrite Pete came along to claim we were all wrong.

Pyrite Pete by AL Katraz July 21, 2021

Pyrite Pete 

A derogatory slur for any supporter of the bitcoin technology with no regard for context or reasoning. Most often used by trolls, wall street coke fiends, people invested in the various knock-off technologies or existing financial system establishment.

Bitcoin supporter in response to Etherium Hack Bitcoin remains the only major cryptocurrency solution with no known security flaws despite being the highest profile hacking target in the world. Troll ReplyLOL Another bitcoin boomer L0s3r. Pyrite Pete strikes again!

Pyrite Pete by shaitand August 2, 2021

Pyrite code 

Pyrite code is what occurs when a finished program is subjected to constant tinkering and updates, resulting in frequent glitches and bugs. The term stems from gold code, which is what programmers call a finished program, minus any patches or fully-formed updates; the code is golden. Pyrite is also known as fool's code.

"Man, Skype is so messed up now, it's full of pyrite code."
"AOL back in the day was totally pyrite code."

Pyrite code by Windthin June 18, 2016

irony pyrite

Noun. Cheap, tacky, often gold-coloured, decor; intended to look expensive but actually achieving the opposite effect. Portmanteau from "irony" + "iron pyrite" (fool's gold).

Trump has decked the Oval Office out in irony pyrite.

irony pyrite by Allon Nym June 25, 2026