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Like a gaydar, but for identifying bisexuals.
My Bi-Fi is telling me that Ryan is definitely not straight.
by Rusical May 26, 2018
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Someone who enjoys both Star Trek and Star Wars.
I collect Chewbacca and Tribbles because I'm secretly bi-fi.
by Peacemuffin December 02, 2007
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A nice tasty sausage, each individually packed.
I'm sooo hungry, I would really like to snack a BiFi right now!
by `tr4sh.Y April 09, 2004
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The ability to detect another bisexual person, similar to gaydar.
My bi-fi signal was quite strong in the bar.
by nobody’s baby June 04, 2018
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The ability to sense if another person is bisexual, similar to gaydar.
My bi-fi is strong in here.
by nobody’s baby June 03, 2018
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