1 definition by hh8450

Top Definition
The abbreviation for You Don't Know Who You're Fighting For. The title of a song by the Montana band Frosted Grinch.
Music buff: Hey, did you hear that new song by Frosted Grinch?
Clueless person: No, what's it called?
Music buff: YDKWYFF
by hh8450 January 26, 2008
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