- Matt and Christine grew up together, so it's natural that they're biffles.
biffle(1)
noun acronym
a girl or guy that one is best friends with. a girl or guy that one loves and trusts, but only as a friend.
Etymology : from the acronym ‘BFFL,’ meaning ‘Best Friends for Life.’
Source : Rice student, October 2010
Last modified: 9 December 2010