Bifair 

To cheat on your spouse with someone that is the oppisite sex of your spouse.

Teresa: Why is there some cum on your left cheek?

Tony: What? That is just some some special margarita!

Teresa: You had a Bifair

Bifair by reehffre December 17, 2010

BIFAR

An acronym for Bring In Feyd And Rabban. Following a spike in the popularity of Feyd and Rabban memes in various Dune shitposting groups, this acronyms has become popular as an injoke.

"You're posting BIFAR?! Again?!"

BIFAR by Potemi March 1, 2021

bifartual 

The ability to fart in different languages.

Hey bro I’m biFartual in Spanish and English

bifartual by Fartman696969 October 18, 2021

Bifarious 

Is something hilarious but its twice as funny in one go. If you find is so laughable you cant describe it, Bifarious is the word you will then be using. Bifarious is something you will laugh at, at an EPIC proportion.

hilarious x hilarious = Bifarious

sounds like Hilarious only using the letter B not H

said like 'Ba - fair - ious'

Bifarious by Rafikki May 17, 2010

Binairus 

A devastating flu or similar virus that is highly contagious...it may be caused by drunkenly diving into trash on the street ("bin-diving") eating from the trash or not washing hands after taking out the trash ("emptying the bin").

"Dude, sorry I got you so sick. I've been in bad shape ever since I ate that pizza from the garbage. Binairus is no joke."

Binairus by Patient #2 June 29, 2016

BiFartual 

The ability to fart in different languages.

Hey bro I are you biFartual I could’ve swore I heard you fart in Spanish.

BiFartual by Fartman696969 October 18, 2021

bifar

Acrynomyn for Bring in Feyd and Raban, a reference to some lame movie.

Bifar is overplayed.

bifar by brohammer2000 February 28, 2021