look up any word, like ratchet:
 
1.
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
 
2.
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