polyfi 

Short for polyfidelity. Can be used as a noun for the practice or concept, or more often as an adjective to describe someone who practices/prefers polyfidelity.

"I'm not really comfortable with regular polyamory, I'm more into polyfi."

"We're poly, but it's not an open network; We're polyfi."

polyfi by Ian X. December 1, 2006

Polynigmion 

A factor that bears no effect in an equation and is thus pointless to include.

A mathematical waste of space.

If (A = B² x C) where (C = 0) then any value of A is 0.
Therefore where (C = 0) B is irrelevant to the equation; a polynigmion.

Polynigmion by SacraliciousSandwich May 10, 2015

polyriddim 

A new type of music only people with a relatively high IQ can discern. made by phonon.

Low iq retard: wtf is this trash
Big brain riddim fan: To be fair, you have to have a very high IQ to understand Polyriddim. The layout is extremely subtle, and without a solid grasp of theoretical music theory most the the song will go over a typical viewers head. The fans understand this stuff; they have the intellectual capacity to truly appreciate the depths of this song to realize they are not just cool, but say something deep about life. As a consequence people who dislike Polyriddim are TRULY idiots, of course they wouldnt appreciate, for instance the genius in the ding sound of the song. Next level. Im smirking right now just imagining one of those addlepated simpletons scratching their heads in confusion at the time change. What fools, I pity you. Only people within 5 IQ points of my own vat intellect can enjoy Polyriddim.

polyriddim by make riddim great again May 26, 2020

Polybit gender 

Combines poly (from the Greek polus "much" and polloi "many") with bit (binary digit).

An alternative to the term non-binary gender which acknowledges that it is possible to count above two in binary so long as you use two or more bits. For instance with 2 bits you get 4 genders, 3 bits 8 genders, and 32 bits you get 4,294,967,296 genders. In general, with n bits there are two to the power of n possible genders.

Xiu is a computer security specialist working in binary code analysis. They are polybit gender.

Polybit gender by socialistpoet March 10, 2020

Polynigmion 

An insult most commonly used by "Dinkles," a character imagined during an episode of Game Grumps. (Steam Train, specifically) The meaning of the word is unknown, likely due to it being made up.

Dinkles supposedly learned this word in his mathematics class: Trigonometry 7.

Dinkles: "You're such a polynigmion!"
Arin: "What the fuck? I don't even know what that means."
Dinkles: "When you get into Trig. 7, you're gonna be super, SUPER offended!"
Arin: "Whatever, man."

Polynigmion by ChanceTheBrony May 24, 2014

Polysics 

The Japanese equivalent of DEVO, right down to the yellow jumpsuits. Hailing from Tokyo, Japan, the POLYSICS are one of the great hopes for the future of music. A less poppy Devo, mixed in with the aggressive sounds of the Bordeoms, trickle in the energy of the Dead Kennedy's, and topped off with the moods of Man or Astroman.

What example?

Polysics by Furik September 22, 2003

Polybius 

According to urban legend, Polybius was a strange arcade game, similair to Tempest which brainwashed those who played it and was placed in arcades by a shady branch of the federal government. All retellings have a different agency, from the CIA, to the NSA, to the FBI, to even forign agencies like the KGB. In reality - at least, according to a former Atari employee - Polybius was a name for one of the early Betas of Tempest, and was tested in a few arcades. The game was known to cause Vertigo and Motion Sickness, and as such was pulled immediately.

My cousin's friend's older brother played Polybius and went insane. I swear!

Polybius by E. Moran May 13, 2004