look up any word, like darude - sandstorm:
 
1.
BFY
BFY... simply means BIG FAT YAWN!
When someone mentions something, or thinks something they have done is cool... pour examplé:

Random gay or lady: I'm going to see Britney Spears at the O2 in June...

Anyone:..... BFY!
by Nick§tar! April 07, 2009
 
2.
BFY
A combination of acronyms: BTW, FYI and BFD. For when you tell someone something that they don't really care about.

By the Way
For Your Information
Big Fucking Deal
BFY, I stubbed my toe on the way out here.
by Summer July 21, 2006