Top definition
Best Friend In The Universe, normally your top friend the one that you've known probably the longest or you connect with the most, the friend that you're not afraid to say that crazy mother fucker is my BFITU, this title is not to be taken lightly and is only for cool people to use. The term was first created by Angel Buscemi and Britt Scidurlo the first orinigal BFITU's then stolen by Matt Brostowski and Ashley Honigman.
Yeah I'm going to a party at my BFITU's you should come with.

1. Ba Fit Too
2. Be Eff Eye Tee You (either way works)
by Brodog12274 January 21, 2010
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