Bi-Fi 

Like a gaydar, but for identifying bisexuals.

My Bi-Fi is telling me that Ryan is definitely not straight.

Bi-Fi by Rusical May 26, 2018

bi-fi 

Someone who enjoys both Star Trek and Star Wars.

I collect Chewbacca and Tribbles because I'm secretly bi-fi.

bi-fi by Peacemuffin December 29, 2007

Bi-fi 

The ability to detect another bisexual person, similar to gaydar.

My bi-fi signal was quite strong in the bar.

Bi-fi by nobody’s baby June 4, 2018

Bi-fi 

The ability to sense if another person is bisexual, similar to gaydar.

My bi-fi is strong in here.

Bi-fi by nobody’s baby June 3, 2018

sci-fi-bi 

Sci-fi-bi is the act of liking both Star Trek and Star Wars. Both of which are heavily disputed amongst the opposing fans. Someone who is sci-fi-bi does not participate in discussions asking "can Vader crush the entire borg race with his mind?" or "could Captain Kirk kick Luke Skywalker's ass?" Instead, a sci-fi-bi knows that both are of differing worlds and therefore are not able to be compared in any way.

"Which is cooler, Star Trek or Star Wars?"
"I like both...I'm sci-fi-bi."
"Weirdo..."

sci-fi-bi by Taglar Dreskk February 4, 2010

Bi-Mon-Sci-Fi-Con 

This word is from The Simpsons, This word means BiMonthly Science Fiction Convention..

Bart Simpson: You mean the Bi-Mon-Sci-Fi-Con...
Principal Skinner: Yes..

Bi-Mon-Sci-Fi-Con by Mikey... September 10, 2005

bi-five 

A hi-five between bisexuals. Usually given shortly after they meet upon discovering they are both bisexual.

Guy: Oh, by the way, I'm bisexual.
Girl: Hey, so am I!
Guy: Bi-five!

bi-five by Periwinkle SC October 7, 2010