An abbreviation for 'Best Friends Forever Even After Death.' Usually more hardcore than just 'BFF.'
These friendships last forever, and not the wussy 'forever,' this forever means for the ever of ever.
#1: Man, I wish we could be best friends forever, and I mean FOREVER!
an acronym for Best Friends Forever All Day Son. A friendship so strong that nothing in the space time continuum can break or weather this resolute bond of friendship.